Home / 279,486,998.56-385,687,040.88-152,328,821.44

Finding the Fourth Proportional to 279,486,998.56, 385,687,040.88 and 152,328,821.44

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Solution

The fourth proportional to 279,486,998.56, 385,687,040.88 and 152,328,821.44 is: 210,211,039.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,486,998.56 : 385,687,040.88 = 152,328,821.44 : x
  2. Step 2: Convert to fraction form
    279,486,998.56/385,687,040.88 = 152,328,821.44/x
  3. Step 3: Cross multiply
    279,486,998.56x = 385,687,040.88 × 152,328,821.44
  4. Step 4: Simplify right side
    279,486,998.56x = 58,751,252,381,931,496
  5. Step 5: Solve for x
    x = 58,751,252,381,931,496/279,486,998.56
  6. Step 6: Final answer
    x = 210,211,039.10

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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.