Home / 279,449,700.70-385,629,359.26-152,287,678.73

Finding the Fourth Proportional to 279,449,700.70, 385,629,359.26 and 152,287,678.73

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Solution

The fourth proportional to 279,449,700.70, 385,629,359.26 and 152,287,678.73 is: 210,150,878.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,449,700.70 : 385,629,359.26 = 152,287,678.73 : x
  2. Step 2: Convert to fraction form
    279,449,700.70/385,629,359.26 = 152,287,678.73/x
  3. Step 3: Cross multiply
    279,449,700.70x = 385,629,359.26 × 152,287,678.73
  4. Step 4: Simplify right side
    279,449,700.70x = 58,726,599,974,151,496
  5. Step 5: Solve for x
    x = 58,726,599,974,151,496/279,449,700.70
  6. Step 6: Final answer
    x = 210,150,878.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.