Home / 215,909,125.32-323,863,294.12-70,342,514.68

Finding the Fourth Proportional to 215,909,125.32, 323,863,294.12 and 70,342,514.68

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Solution

The fourth proportional to 215,909,125.32, 323,863,294.12 and 70,342,514.68 is: 105,513,643.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,909,125.32 : 323,863,294.12 = 70,342,514.68 : x
  2. Step 2: Convert to fraction form
    215,909,125.32/323,863,294.12 = 70,342,514.68/x
  3. Step 3: Cross multiply
    215,909,125.32x = 323,863,294.12 × 70,342,514.68
  4. Step 4: Simplify right side
    215,909,125.32x = 22,781,358,520,949,260
  5. Step 5: Solve for x
    x = 22,781,358,520,949,260/215,909,125.32
  6. Step 6: Final answer
    x = 105,513,643.70

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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.