Home / 15,854,936.57-21,879,440.33-9,328,988.71

Finding the Fourth Proportional to 15,854,936.57, 21,879,440.33 and 9,328,988.71

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Solution

The fourth proportional to 15,854,936.57, 21,879,440.33 and 9,328,988.71 is: 12,873,785.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,854,936.57 : 21,879,440.33 = 9,328,988.71 : x
  2. Step 2: Convert to fraction form
    15,854,936.57/21,879,440.33 = 9,328,988.71/x
  3. Step 3: Cross multiply
    15,854,936.57x = 21,879,440.33 × 9,328,988.71
  4. Step 4: Simplify right side
    15,854,936.57x = 204,113,051,843,011.16
  5. Step 5: Solve for x
    x = 204,113,051,843,011.16/15,854,936.57
  6. Step 6: Final answer
    x = 12,873,785.46

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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.