Home / 20,762,938.60-31,146,740.70-6,385,892.20

Finding the Fourth Proportional to 20,762,938.60, 31,146,740.70 and 6,385,892.20

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Solution

The fourth proportional to 20,762,938.60, 31,146,740.70 and 6,385,892.20 is: 9,579,555.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762,938.60 : 31,146,740.70 = 6,385,892.20 : x
  2. Step 2: Convert to fraction form
    20,762,938.60/31,146,740.70 = 6,385,892.20/x
  3. Step 3: Cross multiply
    20,762,938.60x = 31,146,740.70 × 6,385,892.20
  4. Step 4: Simplify right side
    20,762,938.60x = 198,899,728,491,552.53
  5. Step 5: Solve for x
    x = 198,899,728,491,552.53/20,762,938.60
  6. Step 6: Final answer
    x = 9,579,555.78

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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.