Home / 1,324,775,145.60-1,987,162,718.40-1,315,705,219.20

Finding the Fourth Proportional to 1,324,775,145.60, 1,987,162,718.40 and 1,315,705,219.20

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Solution

The fourth proportional to 1,324,775,145.60, 1,987,162,718.40 and 1,315,705,219.20 is: 1,973,557,828.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,775,145.60 : 1,987,162,718.40 = 1,315,705,219.20 : x
  2. Step 2: Convert to fraction form
    1,324,775,145.60/1,987,162,718.40 = 1,315,705,219.20/x
  3. Step 3: Cross multiply
    1,324,775,145.60x = 1,987,162,718.40 × 1,315,705,219.20
  4. Step 4: Simplify right side
    1,324,775,145.60x = 2,614,520,359,998,540,288
  5. Step 5: Solve for x
    x = 2,614,520,359,998,540,288/1,324,775,145.60
  6. Step 6: Final answer
    x = 1,973,557,828.80

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Double scale
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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.