Home / 40,555,305.47-55,966,091.45-21,970,807.62

Finding the Fourth Proportional to 40,555,305.47, 55,966,091.45 and 21,970,807.62

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Solution

The fourth proportional to 40,555,305.47, 55,966,091.45 and 21,970,807.62 is: 30,319,589.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,555,305.47 : 55,966,091.45 = 21,970,807.62 : x
  2. Step 2: Convert to fraction form
    40,555,305.47/55,966,091.45 = 21,970,807.62/x
  3. Step 3: Cross multiply
    40,555,305.47x = 55,966,091.45 × 21,970,807.62
  4. Step 4: Simplify right side
    40,555,305.47x = 1,229,620,228,381,423
  5. Step 5: Solve for x
    x = 1,229,620,228,381,423/40,555,305.47
  6. Step 6: Final answer
    x = 30,319,589.86

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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.