Home / 143,843,363,999.70-215,765,045,999.55-136,986,499,641.30

Finding the Fourth Proportional to 143,843,363,999.70, 215,765,045,999.55 and 136,986,499,641.30

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Solution

The fourth proportional to 143,843,363,999.70, 215,765,045,999.55 and 136,986,499,641.30 is: 205,479,749,461.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,843,363,999.70 : 215,765,045,999.55 = 136,986,499,641.30 : x
  2. Step 2: Convert to fraction form
    143,843,363,999.70/215,765,045,999.55 = 136,986,499,641.30/x
  3. Step 3: Cross multiply
    143,843,363,999.70x = 215,765,045,999.55 × 136,986,499,641.30
  4. Step 4: Simplify right side
    143,843,363,999.70x = 29,556,898,396,422,434,455,552
  5. Step 5: Solve for x
    x = 29,556,898,396,422,434,455,552/143,843,363,999.70
  6. Step 6: Final answer
    x = 205,479,749,461.95

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1.5x scale

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.