Home / 279,936,256.80-419,904,385.20-75,484,999.20

Finding the Fourth Proportional to 279,936,256.80, 419,904,385.20 and 75,484,999.20

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Solution

The fourth proportional to 279,936,256.80, 419,904,385.20 and 75,484,999.20 is: 113,227,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,256.80 : 419,904,385.20 = 75,484,999.20 : x
  2. Step 2: Convert to fraction form
    279,936,256.80/419,904,385.20 = 75,484,999.20/x
  3. Step 3: Cross multiply
    279,936,256.80x = 419,904,385.20 × 75,484,999.20
  4. Step 4: Simplify right side
    279,936,256.80x = 31,696,482,180,898,492
  5. Step 5: Solve for x
    x = 31,696,482,180,898,492/279,936,256.80
  6. Step 6: Final answer
    x = 113,227,498.80

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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.