Home / 73,278,005.40-109,917,008.10-51,778,920.60

Finding the Fourth Proportional to 73,278,005.40, 109,917,008.10 and 51,778,920.60

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Solution

The fourth proportional to 73,278,005.40, 109,917,008.10 and 51,778,920.60 is: 77,668,380.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,278,005.40 : 109,917,008.10 = 51,778,920.60 : x
  2. Step 2: Convert to fraction form
    73,278,005.40/109,917,008.10 = 51,778,920.60/x
  3. Step 3: Cross multiply
    73,278,005.40x = 109,917,008.10 × 51,778,920.60
  4. Step 4: Simplify right side
    73,278,005.40x = 5,691,384,034,999,457
  5. Step 5: Solve for x
    x = 5,691,384,034,999,457/73,278,005.40
  6. Step 6: Final answer
    x = 77,668,380.90

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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.