Home / 215,882,665.40-323,712,023.70-79,497,846.20

Finding the Fourth Proportional to 215,882,665.40, 323,712,023.70 and 79,497,846.20

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Solution

The fourth proportional to 215,882,665.40, 323,712,023.70 and 79,497,846.20 is: 119,205,535.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,882,665.40 : 323,712,023.70 = 79,497,846.20 : x
  2. Step 2: Convert to fraction form
    215,882,665.40/323,712,023.70 = 79,497,846.20/x
  3. Step 3: Cross multiply
    215,882,665.40x = 323,712,023.70 × 79,497,846.20
  4. Step 4: Simplify right side
    215,882,665.40x = 25,734,408,673,193,356
  5. Step 5: Solve for x
    x = 25,734,408,673,193,356/215,882,665.40
  6. Step 6: Final answer
    x = 119,205,535.22

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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.