Home / 8,085,491.70-12,128,237.55-5,357,427.90

Finding the Fourth Proportional to 8,085,491.70, 12,128,237.55 and 5,357,427.90

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Solution

The fourth proportional to 8,085,491.70, 12,128,237.55 and 5,357,427.90 is: 8,036,141.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,491.70 : 12,128,237.55 = 5,357,427.90 : x
  2. Step 2: Convert to fraction form
    8,085,491.70/12,128,237.55 = 5,357,427.90/x
  3. Step 3: Cross multiply
    8,085,491.70x = 12,128,237.55 × 5,357,427.90
  4. Step 4: Simplify right side
    8,085,491.70x = 64,976,158,228,197.66
  5. Step 5: Solve for x
    x = 64,976,158,228,197.66/8,085,491.70
  6. Step 6: Final answer
    x = 8,036,141.85

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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.