Home / 12,828,104.79-17,696,072.99-7,931,761.71

Finding the Fourth Proportional to 12,828,104.79, 17,696,072.99 and 7,931,761.71

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Solution

The fourth proportional to 12,828,104.79, 17,696,072.99 and 7,931,761.71 is: 10,941,681.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,828,104.79 : 17,696,072.99 = 7,931,761.71 : x
  2. Step 2: Convert to fraction form
    12,828,104.79/17,696,072.99 = 7,931,761.71/x
  3. Step 3: Cross multiply
    12,828,104.79x = 17,696,072.99 × 7,931,761.71
  4. Step 4: Simplify right side
    12,828,104.79x = 140,361,034,119,788.41
  5. Step 5: Solve for x
    x = 140,361,034,119,788.41/12,828,104.79
  6. Step 6: Final answer
    x = 10,941,681.29

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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.