Home / 279,942,003.90-419,913,005.85-198,312,666.30

Finding the Fourth Proportional to 279,942,003.90, 419,913,005.85 and 198,312,666.30

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Solution

The fourth proportional to 279,942,003.90, 419,913,005.85 and 198,312,666.30 is: 297,468,999.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,942,003.90 : 419,913,005.85 = 198,312,666.30 : x
  2. Step 2: Convert to fraction form
    279,942,003.90/419,913,005.85 = 198,312,666.30/x
  3. Step 3: Cross multiply
    279,942,003.90x = 419,913,005.85 × 198,312,666.30
  4. Step 4: Simplify right side
    279,942,003.90x = 83,274,067,804,161,008
  5. Step 5: Solve for x
    x = 83,274,067,804,161,008/279,942,003.90
  6. Step 6: Final answer
    x = 297,468,999.45

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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.