Home / 10,603,721.60-15,895,084.80-5,207,955.20

Finding the Fourth Proportional to 10,603,721.60, 15,895,084.80 and 5,207,955.20

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Solution

The fourth proportional to 10,603,721.60, 15,895,084.80 and 5,207,955.20 is: 7,806,776.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,603,721.60 : 15,895,084.80 = 5,207,955.20 : x
  2. Step 2: Convert to fraction form
    10,603,721.60/15,895,084.80 = 5,207,955.20/x
  3. Step 3: Cross multiply
    10,603,721.60x = 15,895,084.80 × 5,207,955.20
  4. Step 4: Simplify right side
    10,603,721.60x = 82,780,889,538,600.97
  5. Step 5: Solve for x
    x = 82,780,889,538,600.97/10,603,721.60
  6. Step 6: Final answer
    x = 7,806,776.97

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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.