Home / 77,126,541.60-115,465,863.60-74,887,053.60

Finding the Fourth Proportional to 77,126,541.60, 115,465,863.60 and 74,887,053.60

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Solution

The fourth proportional to 77,126,541.60, 115,465,863.60 and 74,887,053.60 is: 112,113,134.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,126,541.60 : 115,465,863.60 = 74,887,053.60 : x
  2. Step 2: Convert to fraction form
    77,126,541.60/115,465,863.60 = 74,887,053.60/x
  3. Step 3: Cross multiply
    77,126,541.60x = 115,465,863.60 × 74,887,053.60
  4. Step 4: Simplify right side
    77,126,541.60x = 8,646,898,316,383,488
  5. Step 5: Solve for x
    x = 8,646,898,316,383,488/77,126,541.60
  6. Step 6: Final answer
    x = 112,113,134.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.