Home / 431,707,671.66-647,416,505.34-140,506,310.28

Finding the Fourth Proportional to 431,707,671.66, 647,416,505.34 and 140,506,310.28

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Solution

The fourth proportional to 431,707,671.66, 647,416,505.34 and 140,506,310.28 is: 210,712,272.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,707,671.66 : 647,416,505.34 = 140,506,310.28 : x
  2. Step 2: Convert to fraction form
    431,707,671.66/647,416,505.34 = 140,506,310.28/x
  3. Step 3: Cross multiply
    431,707,671.66x = 647,416,505.34 × 140,506,310.28
  4. Step 4: Simplify right side
    431,707,671.66x = 90,966,104,379,695,328
  5. Step 5: Solve for x
    x = 90,966,104,379,695,328/431,707,671.66
  6. Step 6: Final answer
    x = 210,712,272.10

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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.