Home / 231,836,430.72-319,941,944.64-127,418,203.20

Finding the Fourth Proportional to 231,836,430.72, 319,941,944.64 and 127,418,203.20

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Solution

The fourth proportional to 231,836,430.72, 319,941,944.64 and 127,418,203.20 is: 175,841,336.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,836,430.72 : 319,941,944.64 = 127,418,203.20 : x
  2. Step 2: Convert to fraction form
    231,836,430.72/319,941,944.64 = 127,418,203.20/x
  3. Step 3: Cross multiply
    231,836,430.72x = 319,941,944.64 × 127,418,203.20
  4. Step 4: Simplify right side
    231,836,430.72x = 40,766,427,714,342,672
  5. Step 5: Solve for x
    x = 40,766,427,714,342,672/231,836,430.72
  6. Step 6: Final answer
    x = 175,841,336.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.