Home / 15,883,861.65-21,920,165.37-8,914,972.47

Finding the Fourth Proportional to 15,883,861.65, 21,920,165.37 and 8,914,972.47

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Solution

The fourth proportional to 15,883,861.65, 21,920,165.37 and 8,914,972.47 is: 12,302,906.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,883,861.65 : 21,920,165.37 = 8,914,972.47 : x
  2. Step 2: Convert to fraction form
    15,883,861.65/21,920,165.37 = 8,914,972.47/x
  3. Step 3: Cross multiply
    15,883,861.65x = 21,920,165.37 × 8,914,972.47
  4. Step 4: Simplify right side
    15,883,861.65x = 195,417,670,811,397.38
  5. Step 5: Solve for x
    x = 195,417,670,811,397.38/15,883,861.65
  6. Step 6: Final answer
    x = 12,302,906.88

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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.