Home / 198,291,213.60-297,436,820.40-125,590,084.80

Finding the Fourth Proportional to 198,291,213.60, 297,436,820.40 and 125,590,084.80

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Solution

The fourth proportional to 198,291,213.60, 297,436,820.40 and 125,590,084.80 is: 188,385,127.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,291,213.60 : 297,436,820.40 = 125,590,084.80 : x
  2. Step 2: Convert to fraction form
    198,291,213.60/297,436,820.40 = 125,590,084.80/x
  3. Step 3: Cross multiply
    198,291,213.60x = 297,436,820.40 × 125,590,084.80
  4. Step 4: Simplify right side
    198,291,213.60x = 37,355,115,496,678,368
  5. Step 5: Solve for x
    x = 37,355,115,496,678,368/198,291,213.60
  6. Step 6: Final answer
    x = 188,385,127.20

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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.