Home / 8,311,958.90-12,475,811.55-5,123,312.90

Finding the Fourth Proportional to 8,311,958.90, 12,475,811.55 and 5,123,312.90

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Solution

The fourth proportional to 8,311,958.90, 12,475,811.55 and 5,123,312.90 is: 7,689,822.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311,958.90 : 12,475,811.55 = 5,123,312.90 : x
  2. Step 2: Convert to fraction form
    8,311,958.90/12,475,811.55 = 5,123,312.90/x
  3. Step 3: Cross multiply
    8,311,958.90x = 12,475,811.55 × 5,123,312.90
  4. Step 4: Simplify right side
    8,311,958.90x = 63,917,486,252,084
  5. Step 5: Solve for x
    x = 63,917,486,252,084/8,311,958.90
  6. Step 6: Final answer
    x = 7,689,822.22

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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.