Home / 138,817,459.20-208,226,188.80-70,793,011.20

Finding the Fourth Proportional to 138,817,459.20, 208,226,188.80 and 70,793,011.20

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Solution

The fourth proportional to 138,817,459.20, 208,226,188.80 and 70,793,011.20 is: 106,189,516.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,817,459.20 : 208,226,188.80 = 70,793,011.20 : x
  2. Step 2: Convert to fraction form
    138,817,459.20/208,226,188.80 = 70,793,011.20/x
  3. Step 3: Cross multiply
    138,817,459.20x = 208,226,188.80 × 70,793,011.20
  4. Step 4: Simplify right side
    138,817,459.20x = 14,740,958,915,851,716
  5. Step 5: Solve for x
    x = 14,740,958,915,851,716/138,817,459.20
  6. Step 6: Final answer
    x = 106,189,516.80

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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.