Home / 12,781,641-19,172,855.16-5,589,472.80

Finding the Fourth Proportional to 12,781,641, 19,172,855.16 and 5,589,472.80

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Solution

The fourth proportional to 12,781,641, 19,172,855.16 and 5,589,472.80 is: 8,384,381.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,641 : 19,172,855.16 = 5,589,472.80 : x
  2. Step 2: Convert to fraction form
    12,781,641/19,172,855.16 = 5,589,472.80/x
  3. Step 3: Cross multiply
    12,781,641x = 19,172,855.16 × 5,589,472.80
  4. Step 4: Simplify right side
    12,781,641x = 107,166,152,415,159.64
  5. Step 5: Solve for x
    x = 107,166,152,415,159.64/12,781,641
  6. Step 6: Final answer
    x = 8,384,381.35

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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.