Home / 458,602,236.57-687,851,839.83-126,656,436.65

Finding the Fourth Proportional to 458,602,236.57, 687,851,839.83 and 126,656,436.65

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Solution

The fourth proportional to 458,602,236.57, 687,851,839.83 and 126,656,436.65 is: 189,970,427.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,602,236.57 : 687,851,839.83 = 126,656,436.65 : x
  2. Step 2: Convert to fraction form
    458,602,236.57/687,851,839.83 = 126,656,436.65/x
  3. Step 3: Cross multiply
    458,602,236.57x = 687,851,839.83 × 126,656,436.65
  4. Step 4: Simplify right side
    458,602,236.57x = 87,120,862,972,575,088
  5. Step 5: Solve for x
    x = 87,120,862,972,575,088/458,602,236.57
  6. Step 6: Final answer
    x = 189,970,427.58

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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.