Home / 6,643,139.20-9,964,708.80-5,037,006.40

Finding the Fourth Proportional to 6,643,139.20, 9,964,708.80 and 5,037,006.40

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Solution

The fourth proportional to 6,643,139.20, 9,964,708.80 and 5,037,006.40 is: 7,555,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643,139.20 : 9,964,708.80 = 5,037,006.40 : x
  2. Step 2: Convert to fraction form
    6,643,139.20/9,964,708.80 = 5,037,006.40/x
  3. Step 3: Cross multiply
    6,643,139.20x = 9,964,708.80 × 5,037,006.40
  4. Step 4: Simplify right side
    6,643,139.20x = 50,192,301,999,736.33
  5. Step 5: Solve for x
    x = 50,192,301,999,736.33/6,643,139.20
  6. Step 6: Final answer
    x = 7,555,509.60

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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.