Home / 100,540,176.94-138,744,494.28-55,884,978.18

Finding the Fourth Proportional to 100,540,176.94, 138,744,494.28 and 55,884,978.18

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Solution

The fourth proportional to 100,540,176.94, 138,744,494.28 and 55,884,978.18 is: 77,120,741.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,540,176.94 : 138,744,494.28 = 55,884,978.18 : x
  2. Step 2: Convert to fraction form
    100,540,176.94/138,744,494.28 = 55,884,978.18/x
  3. Step 3: Cross multiply
    100,540,176.94x = 138,744,494.28 × 55,884,978.18
  4. Step 4: Simplify right side
    100,540,176.94x = 7,753,733,035,432,935
  5. Step 5: Solve for x
    x = 7,753,733,035,432,935/100,540,176.94
  6. Step 6: Final answer
    x = 77,120,741.89

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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.