Home / 147,520,010.20-221,447,976.90-86,969,853.40

Finding the Fourth Proportional to 147,520,010.20, 221,447,976.90 and 86,969,853.40

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Solution

The fourth proportional to 147,520,010.20, 221,447,976.90 and 86,969,853.40 is: 130,553,801.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,520,010.20 : 221,447,976.90 = 86,969,853.40 : x
  2. Step 2: Convert to fraction form
    147,520,010.20/221,447,976.90 = 86,969,853.40/x
  3. Step 3: Cross multiply
    147,520,010.20x = 221,447,976.90 × 86,969,853.40
  4. Step 4: Simplify right side
    147,520,010.20x = 19,259,298,086,719,588
  5. Step 5: Solve for x
    x = 19,259,298,086,719,588/147,520,010.20
  6. Step 6: Final answer
    x = 130,553,801.21

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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.