Home / 20,881,886.89-28,817,200.61-11,714,726.47

Finding the Fourth Proportional to 20,881,886.89, 28,817,200.61 and 11,714,726.47

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Solution

The fourth proportional to 20,881,886.89, 28,817,200.61 and 11,714,726.47 is: 16,166,432.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,881,886.89 : 28,817,200.61 = 11,714,726.47 : x
  2. Step 2: Convert to fraction form
    20,881,886.89/28,817,200.61 = 11,714,726.47/x
  3. Step 3: Cross multiply
    20,881,886.89x = 28,817,200.61 × 11,714,726.47
  4. Step 4: Simplify right side
    20,881,886.89x = 337,585,622,777,267.19
  5. Step 5: Solve for x
    x = 337,585,622,777,267.19/20,881,886.89
  6. Step 6: Final answer
    x = 16,166,432.88

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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.