Home / 15,402,764.72-21,255,007.14-8,432,105.96

Finding the Fourth Proportional to 15,402,764.72, 21,255,007.14 and 8,432,105.96

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Solution

The fourth proportional to 15,402,764.72, 21,255,007.14 and 8,432,105.96 is: 11,635,863.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,402,764.72 : 21,255,007.14 = 8,432,105.96 : x
  2. Step 2: Convert to fraction form
    15,402,764.72/21,255,007.14 = 8,432,105.96/x
  3. Step 3: Cross multiply
    15,402,764.72x = 21,255,007.14 × 8,432,105.96
  4. Step 4: Simplify right side
    15,402,764.72x = 179,224,472,385,036.59
  5. Step 5: Solve for x
    x = 179,224,472,385,036.59/15,402,764.72
  6. Step 6: Final answer
    x = 11,635,863.80

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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.