Home / 279,355,308.62-385,510,431.38-161,948,697.71

Finding the Fourth Proportional to 279,355,308.62, 385,510,431.38 and 161,948,697.71

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Solution

The fourth proportional to 279,355,308.62, 385,510,431.38 and 161,948,697.71 is: 223,489,263.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,355,308.62 : 385,510,431.38 = 161,948,697.71 : x
  2. Step 2: Convert to fraction form
    279,355,308.62/385,510,431.38 = 161,948,697.71/x
  3. Step 3: Cross multiply
    279,355,308.62x = 385,510,431.38 × 161,948,697.71
  4. Step 4: Simplify right side
    279,355,308.62x = 62,432,912,312,874,024
  5. Step 5: Solve for x
    x = 62,432,912,312,874,024/279,355,308.62
  6. Step 6: Final answer
    x = 223,489,263.99

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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.