Home / 92,783,117.20-138,891,240.60-72,375,782.80

Finding the Fourth Proportional to 92,783,117.20, 138,891,240.60 and 72,375,782.80

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Solution

The fourth proportional to 92,783,117.20, 138,891,240.60 and 72,375,782.80 is: 108,342,579.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,783,117.20 : 138,891,240.60 = 72,375,782.80 : x
  2. Step 2: Convert to fraction form
    92,783,117.20/138,891,240.60 = 72,375,782.80/x
  3. Step 3: Cross multiply
    92,783,117.20x = 138,891,240.60 × 72,375,782.80
  4. Step 4: Simplify right side
    92,783,117.20x = 10,052,362,262,488,140
  5. Step 5: Solve for x
    x = 10,052,362,262,488,140/92,783,117.20
  6. Step 6: Final answer
    x = 108,342,579.62

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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.