Home / 279,936,280.10-391,003,799.50-279,936,280.10

Finding the Fourth Proportional to 279,936,280.10, 391,003,799.50 and 279,936,280.10

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Solution

The fourth proportional to 279,936,280.10, 391,003,799.50 and 279,936,280.10 is: 391,003,799.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,280.10 : 391,003,799.50 = 279,936,280.10 : x
  2. Step 2: Convert to fraction form
    279,936,280.10/391,003,799.50 = 279,936,280.10/x
  3. Step 3: Cross multiply
    279,936,280.10x = 391,003,799.50 × 279,936,280.10
  4. Step 4: Simplify right side
    279,936,280.10x = 109,456,149,136,996,256
  5. Step 5: Solve for x
    x = 109,456,149,136,996,256/279,936,280.10
  6. Step 6: Final answer
    x = 391,003,799.50

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.