Home / 15,251,084.20-21,046,419.72-8,281,699.50

Finding the Fourth Proportional to 15,251,084.20, 21,046,419.72 and 8,281,699.50

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Solution

The fourth proportional to 15,251,084.20, 21,046,419.72 and 8,281,699.50 is: 11,428,703.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,251,084.20 : 21,046,419.72 = 8,281,699.50 : x
  2. Step 2: Convert to fraction form
    15,251,084.20/21,046,419.72 = 8,281,699.50/x
  3. Step 3: Cross multiply
    15,251,084.20x = 21,046,419.72 × 8,281,699.50
  4. Step 4: Simplify right side
    15,251,084.20x = 174,300,123,671,914.12
  5. Step 5: Solve for x
    x = 174,300,123,671,914.12/15,251,084.20
  6. Step 6: Final answer
    x = 11,428,703.78

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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.