Home / 21,123,194.70-31,684,792.05-13,564,922.70

Finding the Fourth Proportional to 21,123,194.70, 31,684,792.05 and 13,564,922.70

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Solution

The fourth proportional to 21,123,194.70, 31,684,792.05 and 13,564,922.70 is: 20,347,384.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,123,194.70 : 31,684,792.05 = 13,564,922.70 : x
  2. Step 2: Convert to fraction form
    21,123,194.70/31,684,792.05 = 13,564,922.70/x
  3. Step 3: Cross multiply
    21,123,194.70x = 31,684,792.05 × 13,564,922.70
  4. Step 4: Simplify right side
    21,123,194.70x = 429,801,754,923,824.50
  5. Step 5: Solve for x
    x = 429,801,754,923,824.50/21,123,194.70
  6. Step 6: Final answer
    x = 20,347,384.05

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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.