Home / 99,291,859.20-148,937,788.80-68,680,857.60

Finding the Fourth Proportional to 99,291,859.20, 148,937,788.80 and 68,680,857.60

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Solution

The fourth proportional to 99,291,859.20, 148,937,788.80 and 68,680,857.60 is: 103,021,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,291,859.20 : 148,937,788.80 = 68,680,857.60 : x
  2. Step 2: Convert to fraction form
    99,291,859.20/148,937,788.80 = 68,680,857.60/x
  3. Step 3: Cross multiply
    99,291,859.20x = 148,937,788.80 × 68,680,857.60
  4. Step 4: Simplify right side
    99,291,859.20x = 10,229,175,063,831,674
  5. Step 5: Solve for x
    x = 10,229,175,063,831,674/99,291,859.20
  6. Step 6: Final answer
    x = 103,021,286.40

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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.