Home / 198,515,065.80-297,772,598.70-143,670,354.60

Finding the Fourth Proportional to 198,515,065.80, 297,772,598.70 and 143,670,354.60

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Solution

The fourth proportional to 198,515,065.80, 297,772,598.70 and 143,670,354.60 is: 215,505,531.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,515,065.80 : 297,772,598.70 = 143,670,354.60 : x
  2. Step 2: Convert to fraction form
    198,515,065.80/297,772,598.70 = 143,670,354.60/x
  3. Step 3: Cross multiply
    198,515,065.80x = 297,772,598.70 × 143,670,354.60
  4. Step 4: Simplify right side
    198,515,065.80x = 42,781,094,845,392,496
  5. Step 5: Solve for x
    x = 42,781,094,845,392,496/198,515,065.80
  6. Step 6: Final answer
    x = 215,505,531.90

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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.