Home / 13,521,411.50-20,302,378.47-11,705,377.95

Finding the Fourth Proportional to 13,521,411.50, 20,302,378.47 and 11,705,377.95

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Solution

The fourth proportional to 13,521,411.50, 20,302,378.47 and 11,705,377.95 is: 17,575,606.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,521,411.50 : 20,302,378.47 = 11,705,377.95 : x
  2. Step 2: Convert to fraction form
    13,521,411.50/20,302,378.47 = 11,705,377.95/x
  3. Step 3: Cross multiply
    13,521,411.50x = 20,302,378.47 × 11,705,377.95
  4. Step 4: Simplify right side
    13,521,411.50x = 237,647,013,275,292.72
  5. Step 5: Solve for x
    x = 237,647,013,275,292.72/13,521,411.50
  6. Step 6: Final answer
    x = 17,575,606.91

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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.