Home / 15,013,390.37-20,718,458.84-8,137,870.61

Finding the Fourth Proportional to 15,013,390.37, 20,718,458.84 and 8,137,870.61

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Solution

The fourth proportional to 15,013,390.37, 20,718,458.84 and 8,137,870.61 is: 11,230,250.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,013,390.37 : 20,718,458.84 = 8,137,870.61 : x
  2. Step 2: Convert to fraction form
    15,013,390.37/20,718,458.84 = 8,137,870.61/x
  3. Step 3: Cross multiply
    15,013,390.37x = 20,718,458.84 × 8,137,870.61
  4. Step 4: Simplify right side
    15,013,390.37x = 168,604,137,195,283.09
  5. Step 5: Solve for x
    x = 168,604,137,195,283.09/15,013,390.37
  6. Step 6: Final answer
    x = 11,230,250.67

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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.