Home / 12,875,228.80-19,312,843.20-3,899,780.80

Finding the Fourth Proportional to 12,875,228.80, 19,312,843.20 and 3,899,780.80

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Solution

The fourth proportional to 12,875,228.80, 19,312,843.20 and 3,899,780.80 is: 5,849,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,875,228.80 : 19,312,843.20 = 3,899,780.80 : x
  2. Step 2: Convert to fraction form
    12,875,228.80/19,312,843.20 = 3,899,780.80/x
  3. Step 3: Cross multiply
    12,875,228.80x = 19,312,843.20 × 3,899,780.80
  4. Step 4: Simplify right side
    12,875,228.80x = 75,315,855,104,770.55
  5. Step 5: Solve for x
    x = 75,315,855,104,770.55/12,875,228.80
  6. Step 6: Final answer
    x = 5,849,671.20

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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.