Home / 279,167,519.61-385,254,028.05-153,731,380.11

Finding the Fourth Proportional to 279,167,519.61, 385,254,028.05 and 153,731,380.11

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Solution

The fourth proportional to 279,167,519.61, 385,254,028.05 and 153,731,380.11 is: 212,150,874.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,167,519.61 : 385,254,028.05 = 153,731,380.11 : x
  2. Step 2: Convert to fraction form
    279,167,519.61/385,254,028.05 = 153,731,380.11/x
  3. Step 3: Cross multiply
    279,167,519.61x = 385,254,028.05 × 153,731,380.11
  4. Step 4: Simplify right side
    279,167,519.61x = 59,225,633,425,063,160
  5. Step 5: Solve for x
    x = 59,225,633,425,063,160/279,167,519.61
  6. Step 6: Final answer
    x = 212,150,874.53

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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.