Home / 431,022,734.60-646,534,101.90-397,766,337.80

Finding the Fourth Proportional to 431,022,734.60, 646,534,101.90 and 397,766,337.80

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Solution

The fourth proportional to 431,022,734.60, 646,534,101.90 and 397,766,337.80 is: 596,649,506.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,022,734.60 : 646,534,101.90 = 397,766,337.80 : x
  2. Step 2: Convert to fraction form
    431,022,734.60/646,534,101.90 = 397,766,337.80/x
  3. Step 3: Cross multiply
    431,022,734.60x = 646,534,101.90 × 397,766,337.80
  4. Step 4: Simplify right side
    431,022,734.60x = 257,169,501,975,575,008
  5. Step 5: Solve for x
    x = 257,169,501,975,575,008/431,022,734.60
  6. Step 6: Final answer
    x = 596,649,506.70

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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.