Home / 8,311,956.40-12,475,807.80-5,123,310.40

Finding the Fourth Proportional to 8,311,956.40, 12,475,807.80 and 5,123,310.40

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Solution

The fourth proportional to 8,311,956.40, 12,475,807.80 and 5,123,310.40 is: 7,689,818.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311,956.40 : 12,475,807.80 = 5,123,310.40 : x
  2. Step 2: Convert to fraction form
    8,311,956.40/12,475,807.80 = 5,123,310.40/x
  3. Step 3: Cross multiply
    8,311,956.40x = 12,475,807.80 × 5,123,310.40
  4. Step 4: Simplify right side
    8,311,956.40x = 63,917,435,850,141.12
  5. Step 5: Solve for x
    x = 63,917,435,850,141.12/8,311,956.40
  6. Step 6: Final answer
    x = 7,689,818.47

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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.