Home / 1,189,372,901.63-1,641,485,935.49-719,477,585.37

Finding the Fourth Proportional to 1,189,372,901.63, 1,641,485,935.49 and 719,477,585.37

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Solution

The fourth proportional to 1,189,372,901.63, 1,641,485,935.49 and 719,477,585.37 is: 992,970,611.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,372,901.63 : 1,641,485,935.49 = 719,477,585.37 : x
  2. Step 2: Convert to fraction form
    1,189,372,901.63/1,641,485,935.49 = 719,477,585.37/x
  3. Step 3: Cross multiply
    1,189,372,901.63x = 1,641,485,935.49 × 719,477,585.37
  4. Step 4: Simplify right side
    1,189,372,901.63x = 1,181,012,337,281,563,392
  5. Step 5: Solve for x
    x = 1,181,012,337,281,563,392/1,189,372,901.63
  6. Step 6: Final answer
    x = 992,970,611.38

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Half scale
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Double scale
Find fourth proportional to 1,189,372,902.63, 1,641,485,936.87 and 719,477,586.37
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.