Home / 145,152,331.60-217,747,159.80-72,406,296.40

Finding the Fourth Proportional to 145,152,331.60, 217,747,159.80 and 72,406,296.40

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Solution

The fourth proportional to 145,152,331.60, 217,747,159.80 and 72,406,296.40 is: 108,618,753.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,152,331.60 : 217,747,159.80 = 72,406,296.40 : x
  2. Step 2: Convert to fraction form
    145,152,331.60/217,747,159.80 = 72,406,296.40/x
  3. Step 3: Cross multiply
    145,152,331.60x = 217,747,159.80 × 72,406,296.40
  4. Step 4: Simplify right side
    145,152,331.60x = 15,766,265,392,736,966
  5. Step 5: Solve for x
    x = 15,766,265,392,736,966/145,152,331.60
  6. Step 6: Final answer
    x = 108,618,753.96

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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.