Home / 138,440,443.80-207,660,665.70-57,650,914.20

Finding the Fourth Proportional to 138,440,443.80, 207,660,665.70 and 57,650,914.20

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Solution

The fourth proportional to 138,440,443.80, 207,660,665.70 and 57,650,914.20 is: 86,476,371.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,440,443.80 : 207,660,665.70 = 57,650,914.20 : x
  2. Step 2: Convert to fraction form
    138,440,443.80/207,660,665.70 = 57,650,914.20/x
  3. Step 3: Cross multiply
    138,440,443.80x = 207,660,665.70 × 57,650,914.20
  4. Step 4: Simplify right side
    138,440,443.80x = 11,971,827,220,985,582
  5. Step 5: Solve for x
    x = 11,971,827,220,985,582/138,440,443.80
  6. Step 6: Final answer
    x = 86,476,371.30

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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.