Home / 279,936,035.60-419,904,053.40-210,959,805.20

Finding the Fourth Proportional to 279,936,035.60, 419,904,053.40 and 210,959,805.20

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Solution

The fourth proportional to 279,936,035.60, 419,904,053.40 and 210,959,805.20 is: 316,439,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,035.60 : 419,904,053.40 = 210,959,805.20 : x
  2. Step 2: Convert to fraction form
    279,936,035.60/419,904,053.40 = 210,959,805.20/x
  3. Step 3: Cross multiply
    279,936,035.60x = 419,904,053.40 × 210,959,805.20
  4. Step 4: Simplify right side
    279,936,035.60x = 88,582,877,307,954,384
  5. Step 5: Solve for x
    x = 88,582,877,307,954,384/279,936,035.60
  6. Step 6: Final answer
    x = 316,439,707.80

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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.