Home / 143,578,412.20-215,367,618.30-140,389,766.20

Finding the Fourth Proportional to 143,578,412.20, 215,367,618.30 and 140,389,766.20

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Solution

The fourth proportional to 143,578,412.20, 215,367,618.30 and 140,389,766.20 is: 210,584,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,578,412.20 : 215,367,618.30 = 140,389,766.20 : x
  2. Step 2: Convert to fraction form
    143,578,412.20/215,367,618.30 = 140,389,766.20/x
  3. Step 3: Cross multiply
    143,578,412.20x = 215,367,618.30 × 140,389,766.20
  4. Step 4: Simplify right side
    143,578,412.20x = 30,235,409,580,187,840
  5. Step 5: Solve for x
    x = 30,235,409,580,187,840/143,578,412.20
  6. Step 6: Final answer
    x = 210,584,649.30

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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.