Home / 431,046,207.20-646,569,310.80-189,181,503.20

Finding the Fourth Proportional to 431,046,207.20, 646,569,310.80 and 189,181,503.20

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Solution

The fourth proportional to 431,046,207.20, 646,569,310.80 and 189,181,503.20 is: 283,772,254.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,046,207.20 : 646,569,310.80 = 189,181,503.20 : x
  2. Step 2: Convert to fraction form
    431,046,207.20/646,569,310.80 = 189,181,503.20/x
  3. Step 3: Cross multiply
    431,046,207.20x = 646,569,310.80 × 189,181,503.20
  4. Step 4: Simplify right side
    431,046,207.20x = 122,318,954,140,131,984
  5. Step 5: Solve for x
    x = 122,318,954,140,131,984/431,046,207.20
  6. Step 6: Final answer
    x = 283,772,254.80

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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.