Home / 143,471,999.20-215,207,998.80-132,386,533.60

Finding the Fourth Proportional to 143,471,999.20, 215,207,998.80 and 132,386,533.60

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Solution

The fourth proportional to 143,471,999.20, 215,207,998.80 and 132,386,533.60 is: 198,579,800.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,471,999.20 : 215,207,998.80 = 132,386,533.60 : x
  2. Step 2: Convert to fraction form
    143,471,999.20/215,207,998.80 = 132,386,533.60/x
  3. Step 3: Cross multiply
    143,471,999.20x = 215,207,998.80 × 132,386,533.60
  4. Step 4: Simplify right side
    143,471,999.20x = 28,490,640,964,124,960
  5. Step 5: Solve for x
    x = 28,490,640,964,124,960/143,471,999.20
  6. Step 6: Final answer
    x = 198,579,800.40

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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.