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Finding the Fourth Proportional to 279,943,301.80, 419,914,952.70 and 88,467,077.80

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Solution

The fourth proportional to 279,943,301.80, 419,914,952.70 and 88,467,077.80 is: 132,700,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,943,301.80 : 419,914,952.70 = 88,467,077.80 : x
  2. Step 2: Convert to fraction form
    279,943,301.80/419,914,952.70 = 88,467,077.80/x
  3. Step 3: Cross multiply
    279,943,301.80x = 419,914,952.70 × 88,467,077.80
  4. Step 4: Simplify right side
    279,943,301.80x = 37,148,648,789,894,216
  5. Step 5: Solve for x
    x = 37,148,648,789,894,216/279,943,301.80
  6. Step 6: Final answer
    x = 132,700,616.70

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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.