Home / 198,561,039.30-297,841,558.95-143,858,045.70

Finding the Fourth Proportional to 198,561,039.30, 297,841,558.95 and 143,858,045.70

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Solution

The fourth proportional to 198,561,039.30, 297,841,558.95 and 143,858,045.70 is: 215,787,068.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,561,039.30 : 297,841,558.95 = 143,858,045.70 : x
  2. Step 2: Convert to fraction form
    198,561,039.30/297,841,558.95 = 143,858,045.70/x
  3. Step 3: Cross multiply
    198,561,039.30x = 297,841,558.95 × 143,858,045.70
  4. Step 4: Simplify right side
    198,561,039.30x = 42,846,904,598,788,336
  5. Step 5: Solve for x
    x = 42,846,904,598,788,336/198,561,039.30
  6. Step 6: Final answer
    x = 215,787,068.55

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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.