Home / 15,442,686.90-21,302,053.92-9,631,379.52

Finding the Fourth Proportional to 15,442,686.90, 21,302,053.92 and 9,631,379.52

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Solution

The fourth proportional to 15,442,686.90, 21,302,053.92 and 9,631,379.52 is: 13,285,781.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,442,686.90 : 21,302,053.92 = 9,631,379.52 : x
  2. Step 2: Convert to fraction form
    15,442,686.90/21,302,053.92 = 9,631,379.52/x
  3. Step 3: Cross multiply
    15,442,686.90x = 21,302,053.92 × 9,631,379.52
  4. Step 4: Simplify right side
    15,442,686.90x = 205,168,165,859,023.72
  5. Step 5: Solve for x
    x = 205,168,165,859,023.72/15,442,686.90
  6. Step 6: Final answer
    x = 13,285,781.63

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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.