Home / 99,512,616.80-149,335,280.40-45,632,194.40

Finding the Fourth Proportional to 99,512,616.80, 149,335,280.40 and 45,632,194.40

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Solution

The fourth proportional to 99,512,616.80, 149,335,280.40 and 45,632,194.40 is: 68,478,719.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,512,616.80 : 149,335,280.40 = 45,632,194.40 : x
  2. Step 2: Convert to fraction form
    99,512,616.80/149,335,280.40 = 45,632,194.40/x
  3. Step 3: Cross multiply
    99,512,616.80x = 149,335,280.40 × 45,632,194.40
  4. Step 4: Simplify right side
    99,512,616.80x = 6,814,496,545,991,310
  5. Step 5: Solve for x
    x = 6,814,496,545,991,310/99,512,616.80
  6. Step 6: Final answer
    x = 68,478,719.23

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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.