Home / 18,870,520.12-28,302,627.05-5,225,045.87

Finding the Fourth Proportional to 18,870,520.12, 28,302,627.05 and 5,225,045.87

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Solution

The fourth proportional to 18,870,520.12, 28,302,627.05 and 5,225,045.87 is: 7,836,695.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,870,520.12 : 28,302,627.05 = 5,225,045.87 : x
  2. Step 2: Convert to fraction form
    18,870,520.12/28,302,627.05 = 5,225,045.87/x
  3. Step 3: Cross multiply
    18,870,520.12x = 28,302,627.05 × 5,225,045.87
  4. Step 4: Simplify right side
    18,870,520.12x = 147,882,524,671,368.91
  5. Step 5: Solve for x
    x = 147,882,524,671,368.91/18,870,520.12
  6. Step 6: Final answer
    x = 7,836,695.74

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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.