Home / 2,160,047.20-3,240,070.80-664,139.20

Finding the Fourth Proportional to 2,160,047.20, 3,240,070.80 and 664,139.20

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Solution

The fourth proportional to 2,160,047.20, 3,240,070.80 and 664,139.20 is: 996,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,160,047.20 : 3,240,070.80 = 664,139.20 : x
  2. Step 2: Convert to fraction form
    2,160,047.20/3,240,070.80 = 664,139.20/x
  3. Step 3: Cross multiply
    2,160,047.20x = 3,240,070.80 × 664,139.20
  4. Step 4: Simplify right side
    2,160,047.20x = 2,151,858,029,055.36
  5. Step 5: Solve for x
    x = 2,151,858,029,055.36/2,160,047.20
  6. Step 6: Final answer
    x = 996,208.80

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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.