Home / 15,415,582.72-21,272,691.38-8,799,908.64

Finding the Fourth Proportional to 15,415,582.72, 21,272,691.38 and 8,799,908.64

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Solution

The fourth proportional to 15,415,582.72, 21,272,691.38 and 8,799,908.64 is: 12,143,409.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,415,582.72 : 21,272,691.38 = 8,799,908.64 : x
  2. Step 2: Convert to fraction form
    15,415,582.72/21,272,691.38 = 8,799,908.64/x
  3. Step 3: Cross multiply
    15,415,582.72x = 21,272,691.38 × 8,799,908.64
  4. Step 4: Simplify right side
    15,415,582.72x = 187,197,740,670,915.53
  5. Step 5: Solve for x
    x = 187,197,740,670,915.53/15,415,582.72
  6. Step 6: Final answer
    x = 12,143,409.96

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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.