Home / 4,660,712.64-6,983,947.20-3,138,768

Finding the Fourth Proportional to 4,660,712.64, 6,983,947.20 and 3,138,768

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Solution

The fourth proportional to 4,660,712.64, 6,983,947.20 and 3,138,768 is: 4,703,355.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,660,712.64 : 6,983,947.20 = 3,138,768 : x
  2. Step 2: Convert to fraction form
    4,660,712.64/6,983,947.20 = 3,138,768/x
  3. Step 3: Cross multiply
    4,660,712.64x = 6,983,947.20 × 3,138,768
  4. Step 4: Simplify right side
    4,660,712.64x = 21,920,989,985,049.60
  5. Step 5: Solve for x
    x = 21,920,989,985,049.60/4,660,712.64
  6. Step 6: Final answer
    x = 4,703,355.83

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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.