Home / 154,440,321.56-213,131,805.77-90,865,098.50

Finding the Fourth Proportional to 154,440,321.56, 213,131,805.77 and 90,865,098.50

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Solution

The fourth proportional to 154,440,321.56, 213,131,805.77 and 90,865,098.50 is: 125,396,284.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,440,321.56 : 213,131,805.77 = 90,865,098.50 : x
  2. Step 2: Convert to fraction form
    154,440,321.56/213,131,805.77 = 90,865,098.50/x
  3. Step 3: Cross multiply
    154,440,321.56x = 213,131,805.77 × 90,865,098.50
  4. Step 4: Simplify right side
    154,440,321.56x = 19,366,242,524,773,920
  5. Step 5: Solve for x
    x = 19,366,242,524,773,920/154,440,321.56
  6. Step 6: Final answer
    x = 125,396,284.66

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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.