Home / 136,733,319.64-188,691,990.32-74,853,658.21

Finding the Fourth Proportional to 136,733,319.64, 188,691,990.32 and 74,853,658.21

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Solution

The fourth proportional to 136,733,319.64, 188,691,990.32 and 74,853,658.21 is: 103,298,053.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,733,319.64 : 188,691,990.32 = 74,853,658.21 : x
  2. Step 2: Convert to fraction form
    136,733,319.64/188,691,990.32 = 74,853,658.21/x
  3. Step 3: Cross multiply
    136,733,319.64x = 188,691,990.32 × 74,853,658.21
  4. Step 4: Simplify right side
    136,733,319.64x = 14,124,285,750,377,906
  5. Step 5: Solve for x
    x = 14,124,285,750,377,906/136,733,319.64
  6. Step 6: Final answer
    x = 103,298,053.38

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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.