Home / 1,856,496,377.28-2,785,061,826.72-765,382,987.20

Finding the Fourth Proportional to 1,856,496,377.28, 2,785,061,826.72 and 765,382,987.20

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Solution

The fourth proportional to 1,856,496,377.28, 2,785,061,826.72 and 765,382,987.20 is: 1,148,205,278.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,856,496,377.28 : 2,785,061,826.72 = 765,382,987.20 : x
  2. Step 2: Convert to fraction form
    1,856,496,377.28/2,785,061,826.72 = 765,382,987.20/x
  3. Step 3: Cross multiply
    1,856,496,377.28x = 2,785,061,826.72 × 765,382,987.20
  4. Step 4: Simplify right side
    1,856,496,377.28x = 2,131,638,940,471,642,368
  5. Step 5: Solve for x
    x = 2,131,638,940,471,642,368/1,856,496,377.28
  6. Step 6: Final answer
    x = 1,148,205,278.80

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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.