Home / 8,085,405.70-12,128,108.55-5,806,114.30

Finding the Fourth Proportional to 8,085,405.70, 12,128,108.55 and 5,806,114.30

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Solution

The fourth proportional to 8,085,405.70, 12,128,108.55 and 5,806,114.30 is: 8,709,171.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,405.70 : 12,128,108.55 = 5,806,114.30 : x
  2. Step 2: Convert to fraction form
    8,085,405.70/12,128,108.55 = 5,806,114.30/x
  3. Step 3: Cross multiply
    8,085,405.70x = 12,128,108.55 × 5,806,114.30
  4. Step 4: Simplify right side
    8,085,405.70x = 70,417,184,484,107.27
  5. Step 5: Solve for x
    x = 70,417,184,484,107.27/8,085,405.70
  6. Step 6: Final answer
    x = 8,709,171.45

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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.