Home / 279,936,023.60-391,003,440.40-279,936,023.60

Finding the Fourth Proportional to 279,936,023.60, 391,003,440.40 and 279,936,023.60

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Solution

The fourth proportional to 279,936,023.60, 391,003,440.40 and 279,936,023.60 is: 391,003,440.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,023.60 : 391,003,440.40 = 279,936,023.60 : x
  2. Step 2: Convert to fraction form
    279,936,023.60/391,003,440.40 = 279,936,023.60/x
  3. Step 3: Cross multiply
    279,936,023.60x = 391,003,440.40 × 279,936,023.60
  4. Step 4: Simplify right side
    279,936,023.60x = 109,455,948,319,495,600
  5. Step 5: Solve for x
    x = 109,455,948,319,495,600/279,936,023.60
  6. Step 6: Final answer
    x = 391,003,440.40

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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.