Home / 279,936,005.60-391,003,415.20-279,936,005.60

Finding the Fourth Proportional to 279,936,005.60, 391,003,415.20 and 279,936,005.60

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Solution

The fourth proportional to 279,936,005.60, 391,003,415.20 and 279,936,005.60 is: 391,003,415.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,005.60 : 391,003,415.20 = 279,936,005.60 : x
  2. Step 2: Convert to fraction form
    279,936,005.60/391,003,415.20 = 279,936,005.60/x
  3. Step 3: Cross multiply
    279,936,005.60x = 391,003,415.20 × 279,936,005.60
  4. Step 4: Simplify right side
    279,936,005.60x = 109,455,934,227,046,336
  5. Step 5: Solve for x
    x = 109,455,934,227,046,336/279,936,005.60
  6. Step 6: Final answer
    x = 391,003,415.20

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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.