Home / 231,836,138.82-319,941,071.37-127,412,312.58

Finding the Fourth Proportional to 231,836,138.82, 319,941,071.37 and 127,412,312.58

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Solution

The fourth proportional to 231,836,138.82, 319,941,071.37 and 127,412,312.58 is: 175,832,948.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,836,138.82 : 319,941,071.37 = 127,412,312.58 : x
  2. Step 2: Convert to fraction form
    231,836,138.82/319,941,071.37 = 127,412,312.58/x
  3. Step 3: Cross multiply
    231,836,138.82x = 319,941,071.37 × 127,412,312.58
  4. Step 4: Simplify right side
    231,836,138.82x = 40,764,431,792,574,528
  5. Step 5: Solve for x
    x = 40,764,431,792,574,528/231,836,138.82
  6. Step 6: Final answer
    x = 175,832,948.22

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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.