Home / 80,881,433.20-121,322,149.80-76,417,328.80

Finding the Fourth Proportional to 80,881,433.20, 121,322,149.80 and 76,417,328.80

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Solution

The fourth proportional to 80,881,433.20, 121,322,149.80 and 76,417,328.80 is: 114,625,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,881,433.20 : 121,322,149.80 = 76,417,328.80 : x
  2. Step 2: Convert to fraction form
    80,881,433.20/121,322,149.80 = 76,417,328.80/x
  3. Step 3: Cross multiply
    80,881,433.20x = 121,322,149.80 × 76,417,328.80
  4. Step 4: Simplify right side
    80,881,433.20x = 9,271,114,611,989,454
  5. Step 5: Solve for x
    x = 9,271,114,611,989,454/80,881,433.20
  6. Step 6: Final answer
    x = 114,625,993.20

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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.