Home / 198,165,715.80-297,248,573.70-143,462,722.20

Finding the Fourth Proportional to 198,165,715.80, 297,248,573.70 and 143,462,722.20

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Solution

The fourth proportional to 198,165,715.80, 297,248,573.70 and 143,462,722.20 is: 215,194,083.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,165,715.80 : 297,248,573.70 = 143,462,722.20 : x
  2. Step 2: Convert to fraction form
    198,165,715.80/297,248,573.70 = 143,462,722.20/x
  3. Step 3: Cross multiply
    198,165,715.80x = 297,248,573.70 × 143,462,722.20
  4. Step 4: Simplify right side
    198,165,715.80x = 42,644,089,553,069,320
  5. Step 5: Solve for x
    x = 42,644,089,553,069,320/198,165,715.80
  6. Step 6: Final answer
    x = 215,194,083.30

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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.