Home / 341,642,287.20-512,413,664.40-99,279,919.20

Finding the Fourth Proportional to 341,642,287.20, 512,413,664.40 and 99,279,919.20

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Solution

The fourth proportional to 341,642,287.20, 512,413,664.40 and 99,279,919.20 is: 148,905,416.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,642,287.20 : 512,413,664.40 = 99,279,919.20 : x
  2. Step 2: Convert to fraction form
    341,642,287.20/512,413,664.40 = 99,279,919.20/x
  3. Step 3: Cross multiply
    341,642,287.20x = 512,413,664.40 × 99,279,919.20
  4. Step 4: Simplify right side
    341,642,287.20x = 50,872,387,198,607,912
  5. Step 5: Solve for x
    x = 50,872,387,198,607,912/341,642,287.20
  6. Step 6: Final answer
    x = 148,905,416.88

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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.