Home / 21,279,892.40-31,919,838.60-14,561,428.40

Finding the Fourth Proportional to 21,279,892.40, 31,919,838.60 and 14,561,428.40

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Solution

The fourth proportional to 21,279,892.40, 31,919,838.60 and 14,561,428.40 is: 21,842,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,279,892.40 : 31,919,838.60 = 14,561,428.40 : x
  2. Step 2: Convert to fraction form
    21,279,892.40/31,919,838.60 = 14,561,428.40/x
  3. Step 3: Cross multiply
    21,279,892.40x = 31,919,838.60 × 14,561,428.40
  4. Step 4: Simplify right side
    21,279,892.40x = 464,798,444,313,456.25
  5. Step 5: Solve for x
    x = 464,798,444,313,456.25/21,279,892.40
  6. Step 6: Final answer
    x = 21,842,142.60

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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.