Home / 8,143,385.94-12,215,071.01-2,078,117.71

Finding the Fourth Proportional to 8,143,385.94, 12,215,071.01 and 2,078,117.71

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Solution

The fourth proportional to 8,143,385.94, 12,215,071.01 and 2,078,117.71 is: 3,117,174.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,143,385.94 : 12,215,071.01 = 2,078,117.71 : x
  2. Step 2: Convert to fraction form
    8,143,385.94/12,215,071.01 = 2,078,117.71/x
  3. Step 3: Cross multiply
    8,143,385.94x = 12,215,071.01 × 2,078,117.71
  4. Step 4: Simplify right side
    8,143,385.94x = 25,384,355,357,756.79
  5. Step 5: Solve for x
    x = 25,384,355,357,756.79/8,143,385.94
  6. Step 6: Final answer
    x = 3,117,174.54

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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.