Home / 87,969,033.64-131,900,535.42-39,438,111.40

Finding the Fourth Proportional to 87,969,033.64, 131,900,535.42 and 39,438,111.40

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Solution

The fourth proportional to 87,969,033.64, 131,900,535.42 and 39,438,111.40 is: 59,133,399.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,969,033.64 : 131,900,535.42 = 39,438,111.40 : x
  2. Step 2: Convert to fraction form
    87,969,033.64/131,900,535.42 = 39,438,111.40/x
  3. Step 3: Cross multiply
    87,969,033.64x = 131,900,535.42 × 39,438,111.40
  4. Step 4: Simplify right side
    87,969,033.64x = 5,201,908,009,613,606
  5. Step 5: Solve for x
    x = 5,201,908,009,613,606/87,969,033.64
  6. Step 6: Final answer
    x = 59,133,399.50

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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.