Home / 20,860,815.60-31,291,223.40-17,680,042.80

Finding the Fourth Proportional to 20,860,815.60, 31,291,223.40 and 17,680,042.80

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Solution

The fourth proportional to 20,860,815.60, 31,291,223.40 and 17,680,042.80 is: 26,520,064.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,860,815.60 : 31,291,223.40 = 17,680,042.80 : x
  2. Step 2: Convert to fraction form
    20,860,815.60/31,291,223.40 = 17,680,042.80/x
  3. Step 3: Cross multiply
    20,860,815.60x = 31,291,223.40 × 17,680,042.80
  4. Step 4: Simplify right side
    20,860,815.60x = 553,230,168,976,361.50
  5. Step 5: Solve for x
    x = 553,230,168,976,361.50/20,860,815.60
  6. Step 6: Final answer
    x = 26,520,064.20

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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.