Home / 279,936,039.60-419,904,059.40-193,650,433.20

Finding the Fourth Proportional to 279,936,039.60, 419,904,059.40 and 193,650,433.20

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Solution

The fourth proportional to 279,936,039.60, 419,904,059.40 and 193,650,433.20 is: 290,475,649.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,039.60 : 419,904,059.40 = 193,650,433.20 : x
  2. Step 2: Convert to fraction form
    279,936,039.60/419,904,059.40 = 193,650,433.20/x
  3. Step 3: Cross multiply
    279,936,039.60x = 419,904,059.40 × 193,650,433.20
  4. Step 4: Simplify right side
    279,936,039.60x = 81,314,603,005,248,528
  5. Step 5: Solve for x
    x = 81,314,603,005,248,528/279,936,039.60
  6. Step 6: Final answer
    x = 290,475,649.80

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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.