Home / 21,514,787.28-29,691,459.09-12,098,541.80

Finding the Fourth Proportional to 21,514,787.28, 29,691,459.09 and 12,098,541.80

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Solution

The fourth proportional to 21,514,787.28, 29,691,459.09 and 12,098,541.80 is: 16,696,579.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,514,787.28 : 29,691,459.09 = 12,098,541.80 : x
  2. Step 2: Convert to fraction form
    21,514,787.28/29,691,459.09 = 12,098,541.80/x
  3. Step 3: Cross multiply
    21,514,787.28x = 29,691,459.09 × 12,098,541.80
  4. Step 4: Simplify right side
    21,514,787.28x = 359,223,358,903,355
  5. Step 5: Solve for x
    x = 359,223,358,903,355/21,514,787.28
  6. Step 6: Final answer
    x = 16,696,579.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.