Home / 80,741,818.40-121,114,443.16-28,929,795.84

Finding the Fourth Proportional to 80,741,818.40, 121,114,443.16 and 28,929,795.84

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Solution

The fourth proportional to 80,741,818.40, 121,114,443.16 and 28,929,795.84 is: 43,395,308.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,741,818.40 : 121,114,443.16 = 28,929,795.84 : x
  2. Step 2: Convert to fraction form
    80,741,818.40/121,114,443.16 = 28,929,795.84/x
  3. Step 3: Cross multiply
    80,741,818.40x = 121,114,443.16 × 28,929,795.84
  4. Step 4: Simplify right side
    80,741,818.40x = 3,503,816,113,894,084.50
  5. Step 5: Solve for x
    x = 3,503,816,113,894,084.50/80,741,818.40
  6. Step 6: Final answer
    x = 43,395,308.45

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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.