Home / 28,134,663.40-38,827,921.80-15,745,998.52

Finding the Fourth Proportional to 28,134,663.40, 38,827,921.80 and 15,745,998.52

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Solution

The fourth proportional to 28,134,663.40, 38,827,921.80 and 15,745,998.52 is: 21,730,645.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,134,663.40 : 38,827,921.80 = 15,745,998.52 : x
  2. Step 2: Convert to fraction form
    28,134,663.40/38,827,921.80 = 15,745,998.52/x
  3. Step 3: Cross multiply
    28,134,663.40x = 38,827,921.80 × 15,745,998.52
  4. Step 4: Simplify right side
    28,134,663.40x = 611,384,399,197,475.62
  5. Step 5: Solve for x
    x = 611,384,399,197,475.62/28,134,663.40
  6. Step 6: Final answer
    x = 21,730,645.59

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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.