Home / 80,414,295.30-120,621,442.95-67,021,982.10

Finding the Fourth Proportional to 80,414,295.30, 120,621,442.95 and 67,021,982.10

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Solution

The fourth proportional to 80,414,295.30, 120,621,442.95 and 67,021,982.10 is: 100,532,973.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,414,295.30 : 120,621,442.95 = 67,021,982.10 : x
  2. Step 2: Convert to fraction form
    80,414,295.30/120,621,442.95 = 67,021,982.10/x
  3. Step 3: Cross multiply
    80,414,295.30x = 120,621,442.95 × 67,021,982.10
  4. Step 4: Simplify right side
    80,414,295.30x = 8,084,288,190,271,072
  5. Step 5: Solve for x
    x = 8,084,288,190,271,072/80,414,295.30
  6. Step 6: Final answer
    x = 100,532,973.15

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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.