Home / 1,248,300,919.20-1,722,002,151.18-771,838,977.78

Finding the Fourth Proportional to 1,248,300,919.20, 1,722,002,151.18 and 771,838,977.78

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Solution

The fourth proportional to 1,248,300,919.20, 1,722,002,151.18 and 771,838,977.78 is: 1,064,733,959.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,300,919.20 : 1,722,002,151.18 = 771,838,977.78 : x
  2. Step 2: Convert to fraction form
    1,248,300,919.20/1,722,002,151.18 = 771,838,977.78/x
  3. Step 3: Cross multiply
    1,248,300,919.20x = 1,722,002,151.18 × 771,838,977.78
  4. Step 4: Simplify right side
    1,248,300,919.20x = 1,329,108,380,101,732,096
  5. Step 5: Solve for x
    x = 1,329,108,380,101,732,096/1,248,300,919.20
  6. Step 6: Final answer
    x = 1,064,733,959.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.