Home / 57,147,643.29-78,865,170.30-31,042,153.29

Finding the Fourth Proportional to 57,147,643.29, 78,865,170.30 and 31,042,153.29

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Solution

The fourth proportional to 57,147,643.29, 78,865,170.30 and 31,042,153.29 is: 42,838,944.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,147,643.29 : 78,865,170.30 = 31,042,153.29 : x
  2. Step 2: Convert to fraction form
    57,147,643.29/78,865,170.30 = 31,042,153.29/x
  3. Step 3: Cross multiply
    57,147,643.29x = 78,865,170.30 × 31,042,153.29
  4. Step 4: Simplify right side
    57,147,643.29x = 2,448,144,705,694,555
  5. Step 5: Solve for x
    x = 2,448,144,705,694,555/57,147,643.29
  6. Step 6: Final answer
    x = 42,838,944.26

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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.