Home / 805,143,182.86-1,207,415,740.30-280,377,524.69

Finding the Fourth Proportional to 805,143,182.86, 1,207,415,740.30 and 280,377,524.69

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Solution

The fourth proportional to 805,143,182.86, 1,207,415,740.30 and 280,377,524.69 is: 420,462,153.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,143,182.86 : 1,207,415,740.30 = 280,377,524.69 : x
  2. Step 2: Convert to fraction form
    805,143,182.86/1,207,415,740.30 = 280,377,524.69/x
  3. Step 3: Cross multiply
    805,143,182.86x = 1,207,415,740.30 × 280,377,524.69
  4. Step 4: Simplify right side
    805,143,182.86x = 338,532,236,534,847,680
  5. Step 5: Solve for x
    x = 338,532,236,534,847,680/805,143,182.86
  6. Step 6: Final answer
    x = 420,462,153.49

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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.