Home / 148,715,999.20-223,073,998.80-138,638,303.20

Finding the Fourth Proportional to 148,715,999.20, 223,073,998.80 and 138,638,303.20

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Solution

The fourth proportional to 148,715,999.20, 223,073,998.80 and 138,638,303.20 is: 207,957,454.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,715,999.20 : 223,073,998.80 = 138,638,303.20 : x
  2. Step 2: Convert to fraction form
    148,715,999.20/223,073,998.80 = 138,638,303.20/x
  3. Step 3: Cross multiply
    148,715,999.20x = 223,073,998.80 × 138,638,303.20
  4. Step 4: Simplify right side
    148,715,999.20x = 30,926,600,681,670,836
  5. Step 5: Solve for x
    x = 30,926,600,681,670,836/148,715,999.20
  6. Step 6: Final answer
    x = 207,957,454.80

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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.