Home / 15,013,391.37-20,718,460.22-8,137,871.61

Finding the Fourth Proportional to 15,013,391.37, 20,718,460.22 and 8,137,871.61

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Solution

The fourth proportional to 15,013,391.37, 20,718,460.22 and 8,137,871.61 is: 11,230,252.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,013,391.37 : 20,718,460.22 = 8,137,871.61 : x
  2. Step 2: Convert to fraction form
    15,013,391.37/20,718,460.22 = 8,137,871.61/x
  3. Step 3: Cross multiply
    15,013,391.37x = 20,718,460.22 × 8,137,871.61
  4. Step 4: Simplify right side
    15,013,391.37x = 168,604,169,227,252.34
  5. Step 5: Solve for x
    x = 168,604,169,227,252.34/15,013,391.37
  6. Step 6: Final answer
    x = 11,230,252.05

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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.