Home / 258,764,761.41-388,268,351.15-127,535,499

Finding the Fourth Proportional to 258,764,761.41, 388,268,351.15 and 127,535,499

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Solution

The fourth proportional to 258,764,761.41, 388,268,351.15 and 127,535,499 is: 191,362,987.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,764,761.41 : 388,268,351.15 = 127,535,499 : x
  2. Step 2: Convert to fraction form
    258,764,761.41/388,268,351.15 = 127,535,499/x
  3. Step 3: Cross multiply
    258,764,761.41x = 388,268,351.15 × 127,535,499
  4. Step 4: Simplify right side
    258,764,761.41x = 49,517,997,909,184,792
  5. Step 5: Solve for x
    x = 49,517,997,909,184,792/258,764,761.41
  6. Step 6: Final answer
    x = 191,362,987.91

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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.