Home / 85,213,970.70-127,746,306.45-51,148,869.90

Finding the Fourth Proportional to 85,213,970.70, 127,746,306.45 and 51,148,869.90

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Solution

The fourth proportional to 85,213,970.70, 127,746,306.45 and 51,148,869.90 is: 76,678,497.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,213,970.70 : 127,746,306.45 = 51,148,869.90 : x
  2. Step 2: Convert to fraction form
    85,213,970.70/127,746,306.45 = 51,148,869.90/x
  3. Step 3: Cross multiply
    85,213,970.70x = 127,746,306.45 × 51,148,869.90
  4. Step 4: Simplify right side
    85,213,970.70x = 6,534,079,208,816,581
  5. Step 5: Solve for x
    x = 6,534,079,208,816,581/85,213,970.70
  6. Step 6: Final answer
    x = 76,678,497.14

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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.