Home / 6,439,628.70-9,659,443.05-5,767,782.30

Finding the Fourth Proportional to 6,439,628.70, 9,659,443.05 and 5,767,782.30

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Solution

The fourth proportional to 6,439,628.70, 9,659,443.05 and 5,767,782.30 is: 8,651,673.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,439,628.70 : 9,659,443.05 = 5,767,782.30 : x
  2. Step 2: Convert to fraction form
    6,439,628.70/9,659,443.05 = 5,767,782.30/x
  3. Step 3: Cross multiply
    6,439,628.70x = 9,659,443.05 × 5,767,782.30
  4. Step 4: Simplify right side
    6,439,628.70x = 55,713,564,651,648.02
  5. Step 5: Solve for x
    x = 55,713,564,651,648.02/6,439,628.70
  6. Step 6: Final answer
    x = 8,651,673.45

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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.