Home / 80,684,185.44-120,934,540.02-70,949,722.08

Finding the Fourth Proportional to 80,684,185.44, 120,934,540.02 and 70,949,722.08

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Solution

The fourth proportional to 80,684,185.44, 120,934,540.02 and 70,949,722.08 is: 106,343,913.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,684,185.44 : 120,934,540.02 = 70,949,722.08 : x
  2. Step 2: Convert to fraction form
    80,684,185.44/120,934,540.02 = 70,949,722.08/x
  3. Step 3: Cross multiply
    80,684,185.44x = 120,934,540.02 × 70,949,722.08
  4. Step 4: Simplify right side
    80,684,185.44x = 8,580,272,004,291,637
  5. Step 5: Solve for x
    x = 8,580,272,004,291,637/80,684,185.44
  6. Step 6: Final answer
    x = 106,343,913.09

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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.