Home / 81,432,321.90-122,148,482.85-73,370,165.10

Finding the Fourth Proportional to 81,432,321.90, 122,148,482.85 and 73,370,165.10

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Solution

The fourth proportional to 81,432,321.90, 122,148,482.85 and 73,370,165.10 is: 110,055,247.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,432,321.90 : 122,148,482.85 = 73,370,165.10 : x
  2. Step 2: Convert to fraction form
    81,432,321.90/122,148,482.85 = 73,370,165.10/x
  3. Step 3: Cross multiply
    81,432,321.90x = 122,148,482.85 × 73,370,165.10
  4. Step 4: Simplify right side
    81,432,321.90x = 8,962,054,353,419,017
  5. Step 5: Solve for x
    x = 8,962,054,353,419,017/81,432,321.90
  6. Step 6: Final answer
    x = 110,055,247.65

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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.