Home / 279,108,211.38-385,162,291.94-153,659,154.89

Finding the Fourth Proportional to 279,108,211.38, 385,162,291.94 and 153,659,154.89

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Solution

The fourth proportional to 279,108,211.38, 385,162,291.94 and 153,659,154.89 is: 212,045,758.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,108,211.38 : 385,162,291.94 = 153,659,154.89 : x
  2. Step 2: Convert to fraction form
    279,108,211.38/385,162,291.94 = 153,659,154.89/x
  3. Step 3: Cross multiply
    279,108,211.38x = 385,162,291.94 × 153,659,154.89
  4. Step 4: Simplify right side
    279,108,211.38x = 59,183,712,272,301,752
  5. Step 5: Solve for x
    x = 59,183,712,272,301,752/279,108,211.38
  6. Step 6: Final answer
    x = 212,045,758.09

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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.