Home / 429,126,706.64-643,786,012.76-156,497,473.64

Finding the Fourth Proportional to 429,126,706.64, 643,786,012.76 and 156,497,473.64

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Solution

The fourth proportional to 429,126,706.64, 643,786,012.76 and 156,497,473.64 is: 234,781,203.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,126,706.64 : 643,786,012.76 = 156,497,473.64 : x
  2. Step 2: Convert to fraction form
    429,126,706.64/643,786,012.76 = 156,497,473.64/x
  3. Step 3: Cross multiply
    429,126,706.64x = 643,786,012.76 × 156,497,473.64
  4. Step 4: Simplify right side
    429,126,706.64x = 100,750,884,557,707,376
  5. Step 5: Solve for x
    x = 100,750,884,557,707,376/429,126,706.64
  6. Step 6: Final answer
    x = 234,781,203.31

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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.