Home / 77,126,543.60-115,465,866.60-74,887,055.60

Finding the Fourth Proportional to 77,126,543.60, 115,465,866.60 and 74,887,055.60

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Solution

The fourth proportional to 77,126,543.60, 115,465,866.60 and 74,887,055.60 is: 112,113,137.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,126,543.60 : 115,465,866.60 = 74,887,055.60 : x
  2. Step 2: Convert to fraction form
    77,126,543.60/115,465,866.60 = 74,887,055.60/x
  3. Step 3: Cross multiply
    77,126,543.60x = 115,465,866.60 × 74,887,055.60
  4. Step 4: Simplify right side
    77,126,543.60x = 8,646,898,771,976,382
  5. Step 5: Solve for x
    x = 8,646,898,771,976,382/77,126,543.60
  6. Step 6: Final answer
    x = 112,113,137.30

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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.