Home / 68,459,938.71-102,723,123.20-30,116,470.65

Finding the Fourth Proportional to 68,459,938.71, 102,723,123.20 and 30,116,470.65

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Solution

The fourth proportional to 68,459,938.71, 102,723,123.20 and 30,116,470.65 is: 45,189,317.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,459,938.71 : 102,723,123.20 = 30,116,470.65 : x
  2. Step 2: Convert to fraction form
    68,459,938.71/102,723,123.20 = 30,116,470.65/x
  3. Step 3: Cross multiply
    68,459,938.71x = 102,723,123.20 × 30,116,470.65
  4. Step 4: Simplify right side
    68,459,938.71x = 3,093,657,924,929,134
  5. Step 5: Solve for x
    x = 3,093,657,924,929,134/68,459,938.71
  6. Step 6: Final answer
    x = 45,189,317.77

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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.