Home / 15,402,711.57-21,254,933.64-8,432,052.78

Finding the Fourth Proportional to 15,402,711.57, 21,254,933.64 and 8,432,052.78

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Solution

The fourth proportional to 15,402,711.57, 21,254,933.64 and 8,432,052.78 is: 11,635,790.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,402,711.57 : 21,254,933.64 = 8,432,052.78 : x
  2. Step 2: Convert to fraction form
    15,402,711.57/21,254,933.64 = 8,432,052.78/x
  3. Step 3: Cross multiply
    15,402,711.57x = 21,254,933.64 × 8,432,052.78
  4. Step 4: Simplify right side
    15,402,711.57x = 179,222,722,287,877.50
  5. Step 5: Solve for x
    x = 179,222,722,287,877.50/15,402,711.57
  6. Step 6: Final answer
    x = 11,635,790.33

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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.