Home / 279,936,723.40-419,905,085.10-262,020,819.40

Finding the Fourth Proportional to 279,936,723.40, 419,905,085.10 and 262,020,819.40

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Solution

The fourth proportional to 279,936,723.40, 419,905,085.10 and 262,020,819.40 is: 393,031,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,936,723.40 : 419,905,085.10 = 262,020,819.40 : x
  2. Step 2: Convert to fraction form
    279,936,723.40/419,905,085.10 = 262,020,819.40/x
  3. Step 3: Cross multiply
    279,936,723.40x = 419,905,085.10 × 262,020,819.40
  4. Step 4: Simplify right side
    279,936,723.40x = 110,023,874,468,128,736
  5. Step 5: Solve for x
    x = 110,023,874,468,128,736/279,936,723.40
  6. Step 6: Final answer
    x = 393,031,229.10

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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.