Home / 387,232,857.60-580,849,286.40-299,556,902.40

Finding the Fourth Proportional to 387,232,857.60, 580,849,286.40 and 299,556,902.40

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Solution

The fourth proportional to 387,232,857.60, 580,849,286.40 and 299,556,902.40 is: 449,335,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,232,857.60 : 580,849,286.40 = 299,556,902.40 : x
  2. Step 2: Convert to fraction form
    387,232,857.60/580,849,286.40 = 299,556,902.40/x
  3. Step 3: Cross multiply
    387,232,857.60x = 580,849,286.40 × 299,556,902.40
  4. Step 4: Simplify right side
    387,232,857.60x = 173,997,412,995,234,432
  5. Step 5: Solve for x
    x = 173,997,412,995,234,432/387,232,857.60
  6. Step 6: Final answer
    x = 449,335,353.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.