Home / 129,103,322.28-178,162,650.60-73,348,839.16

Finding the Fourth Proportional to 129,103,322.28, 178,162,650.60 and 73,348,839.16

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Solution

The fourth proportional to 129,103,322.28, 178,162,650.60 and 73,348,839.16 is: 101,221,435.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,103,322.28 : 178,162,650.60 = 73,348,839.16 : x
  2. Step 2: Convert to fraction form
    129,103,322.28/178,162,650.60 = 73,348,839.16/x
  3. Step 3: Cross multiply
    129,103,322.28x = 178,162,650.60 × 73,348,839.16
  4. Step 4: Simplify right side
    129,103,322.28x = 13,068,023,603,178,676
  5. Step 5: Solve for x
    x = 13,068,023,603,178,676/129,103,322.28
  6. Step 6: Final answer
    x = 101,221,435.45

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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.