Home / 138,440,447.80-207,660,671.70-57,650,918.20

Finding the Fourth Proportional to 138,440,447.80, 207,660,671.70 and 57,650,918.20

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Solution

The fourth proportional to 138,440,447.80, 207,660,671.70 and 57,650,918.20 is: 86,476,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,440,447.80 : 207,660,671.70 = 57,650,918.20 : x
  2. Step 2: Convert to fraction form
    138,440,447.80/207,660,671.70 = 57,650,918.20/x
  3. Step 3: Cross multiply
    138,440,447.80x = 207,660,671.70 × 57,650,918.20
  4. Step 4: Simplify right side
    138,440,447.80x = 11,971,828,397,533,754
  5. Step 5: Solve for x
    x = 11,971,828,397,533,754/138,440,447.80
  6. Step 6: Final answer
    x = 86,476,377.30

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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.