Home / 1,313,867,791.32-1,970,550,522.10-393,744,129.92

Finding the Fourth Proportional to 1,313,867,791.32, 1,970,550,522.10 and 393,744,129.92

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Solution

The fourth proportional to 1,313,867,791.32, 1,970,550,522.10 and 393,744,129.92 is: 590,540,924.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,867,791.32 : 1,970,550,522.10 = 393,744,129.92 : x
  2. Step 2: Convert to fraction form
    1,313,867,791.32/1,970,550,522.10 = 393,744,129.92/x
  3. Step 3: Cross multiply
    1,313,867,791.32x = 1,970,550,522.10 × 393,744,129.92
  4. Step 4: Simplify right side
    1,313,867,791.32x = 775,892,700,787,666,176
  5. Step 5: Solve for x
    x = 775,892,700,787,666,176/1,313,867,791.32
  6. Step 6: Final answer
    x = 590,540,924.98

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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.