Home / 143,753,342.80-215,483,047.80-70,858,008.40

Finding the Fourth Proportional to 143,753,342.80, 215,483,047.80 and 70,858,008.40

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Solution

The fourth proportional to 143,753,342.80, 215,483,047.80 and 70,858,008.40 is: 106,214,570.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,753,342.80 : 215,483,047.80 = 70,858,008.40 : x
  2. Step 2: Convert to fraction form
    143,753,342.80/215,483,047.80 = 70,858,008.40/x
  3. Step 3: Cross multiply
    143,753,342.80x = 215,483,047.80 × 70,858,008.40
  4. Step 4: Simplify right side
    143,753,342.80x = 15,268,699,611,070,004
  5. Step 5: Solve for x
    x = 15,268,699,611,070,004/143,753,342.80
  6. Step 6: Final answer
    x = 106,214,570.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.