Home / 245,333,670.30-368,000,505.45-142,021,539.90

Finding the Fourth Proportional to 245,333,670.30, 368,000,505.45 and 142,021,539.90

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Solution

The fourth proportional to 245,333,670.30, 368,000,505.45 and 142,021,539.90 is: 213,032,309.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,333,670.30 : 368,000,505.45 = 142,021,539.90 : x
  2. Step 2: Convert to fraction form
    245,333,670.30/368,000,505.45 = 142,021,539.90/x
  3. Step 3: Cross multiply
    245,333,670.30x = 368,000,505.45 × 142,021,539.90
  4. Step 4: Simplify right side
    245,333,670.30x = 52,263,998,467,987,344
  5. Step 5: Solve for x
    x = 52,263,998,467,987,344/245,333,670.30
  6. Step 6: Final answer
    x = 213,032,309.85

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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.