Home / 20,803,341.60-28,708,685.28-11,635,398.72

Finding the Fourth Proportional to 20,803,341.60, 28,708,685.28 and 11,635,398.72

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Solution

The fourth proportional to 20,803,341.60, 28,708,685.28 and 11,635,398.72 is: 16,056,891.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,803,341.60 : 28,708,685.28 = 11,635,398.72 : x
  2. Step 2: Convert to fraction form
    20,803,341.60/28,708,685.28 = 11,635,398.72/x
  3. Step 3: Cross multiply
    20,803,341.60x = 28,708,685.28 × 11,635,398.72
  4. Step 4: Simplify right side
    20,803,341.60x = 334,036,999,959,794.88
  5. Step 5: Solve for x
    x = 334,036,999,959,794.88/20,803,341.60
  6. Step 6: Final answer
    x = 16,056,891.55

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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.