Home / 8,761,976.40-13,128,833.40-4,964,165.20

Finding the Fourth Proportional to 8,761,976.40, 13,128,833.40 and 4,964,165.20

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Solution

The fourth proportional to 8,761,976.40, 13,128,833.40 and 4,964,165.20 is: 7,438,241.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761,976.40 : 13,128,833.40 = 4,964,165.20 : x
  2. Step 2: Convert to fraction form
    8,761,976.40/13,128,833.40 = 4,964,165.20/x
  3. Step 3: Cross multiply
    8,761,976.40x = 13,128,833.40 × 4,964,165.20
  4. Step 4: Simplify right side
    8,761,976.40x = 65,173,697,880,877.69
  5. Step 5: Solve for x
    x = 65,173,697,880,877.69/8,761,976.40
  6. Step 6: Final answer
    x = 7,438,241.66

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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.