Home / 66,108,608.10-99,162,912.15-40,242,521.70

Finding the Fourth Proportional to 66,108,608.10, 99,162,912.15 and 40,242,521.70

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Solution

The fourth proportional to 66,108,608.10, 99,162,912.15 and 40,242,521.70 is: 60,363,782.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,108,608.10 : 99,162,912.15 = 40,242,521.70 : x
  2. Step 2: Convert to fraction form
    66,108,608.10/99,162,912.15 = 40,242,521.70/x
  3. Step 3: Cross multiply
    66,108,608.10x = 99,162,912.15 × 40,242,521.70
  4. Step 4: Simplify right side
    66,108,608.10x = 3,990,565,644,031,569
  5. Step 5: Solve for x
    x = 3,990,565,644,031,569/66,108,608.10
  6. Step 6: Final answer
    x = 60,363,782.55

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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.