Home / 72,372,998.52-99,875,509.56-39,333,249.60

Finding the Fourth Proportional to 72,372,998.52, 99,875,509.56 and 39,333,249.60

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Solution

The fourth proportional to 72,372,998.52, 99,875,509.56 and 39,333,249.60 is: 54,280,303.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,372,998.52 : 99,875,509.56 = 39,333,249.60 : x
  2. Step 2: Convert to fraction form
    72,372,998.52/99,875,509.56 = 39,333,249.60/x
  3. Step 3: Cross multiply
    72,372,998.52x = 99,875,509.56 × 39,333,249.60
  4. Step 4: Simplify right side
    72,372,998.52x = 3,928,428,346,450,666.50
  5. Step 5: Solve for x
    x = 3,928,428,346,450,666.50/72,372,998.52
  6. Step 6: Final answer
    x = 54,280,303.80

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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.