Home / 198,291,207.60-297,436,811.40-125,590,078.80

Finding the Fourth Proportional to 198,291,207.60, 297,436,811.40 and 125,590,078.80

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Solution

The fourth proportional to 198,291,207.60, 297,436,811.40 and 125,590,078.80 is: 188,385,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,291,207.60 : 297,436,811.40 = 125,590,078.80 : x
  2. Step 2: Convert to fraction form
    198,291,207.60/297,436,811.40 = 125,590,078.80/x
  3. Step 3: Cross multiply
    198,291,207.60x = 297,436,811.40 × 125,590,078.80
  4. Step 4: Simplify right side
    198,291,207.60x = 37,355,112,581,746,736
  5. Step 5: Solve for x
    x = 37,355,112,581,746,736/198,291,207.60
  6. Step 6: Final answer
    x = 188,385,118.20

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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.