Home / 143,454,592.45-215,209,168.77-99,324,978.40

Finding the Fourth Proportional to 143,454,592.45, 215,209,168.77 and 99,324,978.40

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Solution

The fourth proportional to 143,454,592.45, 215,209,168.77 and 99,324,978.40 is: 149,006,355.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,454,592.45 : 215,209,168.77 = 99,324,978.40 : x
  2. Step 2: Convert to fraction form
    143,454,592.45/215,209,168.77 = 99,324,978.40/x
  3. Step 3: Cross multiply
    143,454,592.45x = 215,209,168.77 × 99,324,978.40
  4. Step 4: Simplify right side
    143,454,592.45x = 21,375,646,039,562,208
  5. Step 5: Solve for x
    x = 21,375,646,039,562,208/143,454,592.45
  6. Step 6: Final answer
    x = 149,006,355.77

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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.