Home / 312,781,530.20-469,396,244.10-131,159,053.40

Finding the Fourth Proportional to 312,781,530.20, 469,396,244.10 and 131,159,053.40

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Solution

The fourth proportional to 312,781,530.20, 469,396,244.10 and 131,159,053.40 is: 196,832,488.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,781,530.20 : 469,396,244.10 = 131,159,053.40 : x
  2. Step 2: Convert to fraction form
    312,781,530.20/469,396,244.10 = 131,159,053.40/x
  3. Step 3: Cross multiply
    312,781,530.20x = 469,396,244.10 × 131,159,053.40
  4. Step 4: Simplify right side
    312,781,530.20x = 61,565,567,045,671,344
  5. Step 5: Solve for x
    x = 61,565,567,045,671,344/312,781,530.20
  6. Step 6: Final answer
    x = 196,832,488.82

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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.