Home / 129,103,345.26-178,162,682.29-73,348,862.11

Finding the Fourth Proportional to 129,103,345.26, 178,162,682.29 and 73,348,862.11

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Solution

The fourth proportional to 129,103,345.26, 178,162,682.29 and 73,348,862.11 is: 101,221,467.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,103,345.26 : 178,162,682.29 = 73,348,862.11 : x
  2. Step 2: Convert to fraction form
    129,103,345.26/178,162,682.29 = 73,348,862.11/x
  3. Step 3: Cross multiply
    129,103,345.26x = 178,162,682.29 × 73,348,862.11
  4. Step 4: Simplify right side
    129,103,345.26x = 13,068,030,015,808,170
  5. Step 5: Solve for x
    x = 13,068,030,015,808,170/129,103,345.26
  6. Step 6: Final answer
    x = 101,221,467.11

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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.