Home / 431,217,809.40-646,826,714.10-158,532,151.80

Finding the Fourth Proportional to 431,217,809.40, 646,826,714.10 and 158,532,151.80

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Solution

The fourth proportional to 431,217,809.40, 646,826,714.10 and 158,532,151.80 is: 237,798,227.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,217,809.40 : 646,826,714.10 = 158,532,151.80 : x
  2. Step 2: Convert to fraction form
    431,217,809.40/646,826,714.10 = 158,532,151.80/x
  3. Step 3: Cross multiply
    431,217,809.40x = 646,826,714.10 × 158,532,151.80
  4. Step 4: Simplify right side
    431,217,809.40x = 102,542,830,827,996,416
  5. Step 5: Solve for x
    x = 102,542,830,827,996,416/431,217,809.40
  6. Step 6: Final answer
    x = 237,798,227.70

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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.