Home / 347,646,421.02-521,469,818.79-129,268,387.74

Finding the Fourth Proportional to 347,646,421.02, 521,469,818.79 and 129,268,387.74

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Solution

The fourth proportional to 347,646,421.02, 521,469,818.79 and 129,268,387.74 is: 193,902,651.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,646,421.02 : 521,469,818.79 = 129,268,387.74 : x
  2. Step 2: Convert to fraction form
    347,646,421.02/521,469,818.79 = 129,268,387.74/x
  3. Step 3: Cross multiply
    347,646,421.02x = 521,469,818.79 × 129,268,387.74
  4. Step 4: Simplify right side
    347,646,421.02x = 67,409,562,729,406,920
  5. Step 5: Solve for x
    x = 67,409,562,729,406,920/347,646,421.02
  6. Step 6: Final answer
    x = 193,902,651.24

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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.