Home / 72,768,001.20-109,152,001.80-59,853,984.90

Finding the Fourth Proportional to 72,768,001.20, 109,152,001.80 and 59,853,984.90

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Solution

The fourth proportional to 72,768,001.20, 109,152,001.80 and 59,853,984.90 is: 89,780,977.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,768,001.20 : 109,152,001.80 = 59,853,984.90 : x
  2. Step 2: Convert to fraction form
    72,768,001.20/109,152,001.80 = 59,853,984.90/x
  3. Step 3: Cross multiply
    72,768,001.20x = 109,152,001.80 × 59,853,984.90
  4. Step 4: Simplify right side
    72,768,001.20x = 6,533,182,267,541,972
  5. Step 5: Solve for x
    x = 6,533,182,267,541,972/72,768,001.20
  6. Step 6: Final answer
    x = 89,780,977.35

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1.5x scale

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.