Home / 15,314,605.61-21,134,297.45-8,439,333.71

Finding the Fourth Proportional to 15,314,605.61, 21,134,297.45 and 8,439,333.71

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Solution

The fourth proportional to 15,314,605.61, 21,134,297.45 and 8,439,333.71 is: 11,646,358.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314,605.61 : 21,134,297.45 = 8,439,333.71 : x
  2. Step 2: Convert to fraction form
    15,314,605.61/21,134,297.45 = 8,439,333.71/x
  3. Step 3: Cross multiply
    15,314,605.61x = 21,134,297.45 × 8,439,333.71
  4. Step 4: Simplify right side
    15,314,605.61x = 178,359,388,822,378.91
  5. Step 5: Solve for x
    x = 178,359,388,822,378.91/15,314,605.61
  6. Step 6: Final answer
    x = 11,646,358.61

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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.