Home / 80,743,812.40-121,143,712.20-35,338,193.20

Finding the Fourth Proportional to 80,743,812.40, 121,143,712.20 and 35,338,193.20

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Solution

The fourth proportional to 80,743,812.40, 121,143,712.20 and 35,338,193.20 is: 53,019,541.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,743,812.40 : 121,143,712.20 = 35,338,193.20 : x
  2. Step 2: Convert to fraction form
    80,743,812.40/121,143,712.20 = 35,338,193.20/x
  3. Step 3: Cross multiply
    80,743,812.40x = 121,143,712.20 × 35,338,193.20
  4. Step 4: Simplify right side
    80,743,812.40x = 4,280,999,906,688,797.50
  5. Step 5: Solve for x
    x = 4,280,999,906,688,797.50/80,743,812.40
  6. Step 6: Final answer
    x = 53,019,541.43

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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.