Home / 40,487,657.20-55,872,843.72-21,902,792.02

Finding the Fourth Proportional to 40,487,657.20, 55,872,843.72 and 21,902,792.02

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Solution

The fourth proportional to 40,487,657.20, 55,872,843.72 and 21,902,792.02 is: 30,225,786.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,487,657.20 : 55,872,843.72 = 21,902,792.02 : x
  2. Step 2: Convert to fraction form
    40,487,657.20/55,872,843.72 = 21,902,792.02/x
  3. Step 3: Cross multiply
    40,487,657.20x = 55,872,843.72 × 21,902,792.02
  4. Step 4: Simplify right side
    40,487,657.20x = 1,223,771,275,565,123
  5. Step 5: Solve for x
    x = 1,223,771,275,565,123/40,487,657.20
  6. Step 6: Final answer
    x = 30,225,786.33

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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.