Home / 15,656,111.52-21,606,617.33-8,688,108.39

Finding the Fourth Proportional to 15,656,111.52, 21,606,617.33 and 8,688,108.39

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Solution

The fourth proportional to 15,656,111.52, 21,606,617.33 and 8,688,108.39 is: 11,990,246.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,656,111.52 : 21,606,617.33 = 8,688,108.39 : x
  2. Step 2: Convert to fraction form
    15,656,111.52/21,606,617.33 = 8,688,108.39/x
  3. Step 3: Cross multiply
    15,656,111.52x = 21,606,617.33 × 8,688,108.39
  4. Step 4: Simplify right side
    15,656,111.52x = 187,720,633,304,292.41
  5. Step 5: Solve for x
    x = 187,720,633,304,292.41/15,656,111.52
  6. Step 6: Final answer
    x = 11,990,246.31

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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.