Home / 15,635,641.64-21,578,478.22-8,668,505.52

Finding the Fourth Proportional to 15,635,641.64, 21,578,478.22 and 8,668,505.52

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Solution

The fourth proportional to 15,635,641.64, 21,578,478.22 and 8,668,505.52 is: 11,963,254.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,635,641.64 : 21,578,478.22 = 8,668,505.52 : x
  2. Step 2: Convert to fraction form
    15,635,641.64/21,578,478.22 = 8,668,505.52/x
  3. Step 3: Cross multiply
    15,635,641.64x = 21,578,478.22 × 8,668,505.52
  4. Step 4: Simplify right side
    15,635,641.64x = 187,053,157,412,034.88
  5. Step 5: Solve for x
    x = 187,053,157,412,034.88/15,635,641.64
  6. Step 6: Final answer
    x = 11,963,254.32

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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.