Home / 805,143,187.38-1,207,415,747.04-280,377,529.20

Finding the Fourth Proportional to 805,143,187.38, 1,207,415,747.04 and 280,377,529.20

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Solution

The fourth proportional to 805,143,187.38, 1,207,415,747.04 and 280,377,529.20 is: 420,462,160.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,143,187.38 : 1,207,415,747.04 = 280,377,529.20 : x
  2. Step 2: Convert to fraction form
    805,143,187.38/1,207,415,747.04 = 280,377,529.20/x
  3. Step 3: Cross multiply
    805,143,187.38x = 1,207,415,747.04 × 280,377,529.20
  4. Step 4: Simplify right side
    805,143,187.38x = 338,532,243,872,247,360
  5. Step 5: Solve for x
    x = 338,532,243,872,247,360/805,143,187.38
  6. Step 6: Final answer
    x = 420,462,160.24

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1.5x scale

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.