Home / 6,438,532.40-9,657,798.60-2,178,839.60

Finding the Fourth Proportional to 6,438,532.40, 9,657,798.60 and 2,178,839.60

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Solution

The fourth proportional to 6,438,532.40, 9,657,798.60 and 2,178,839.60 is: 3,268,259.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438,532.40 : 9,657,798.60 = 2,178,839.60 : x
  2. Step 2: Convert to fraction form
    6,438,532.40/9,657,798.60 = 2,178,839.60/x
  3. Step 3: Cross multiply
    6,438,532.40x = 9,657,798.60 × 2,178,839.60
  4. Step 4: Simplify right side
    6,438,532.40x = 21,042,794,038,504.56
  5. Step 5: Solve for x
    x = 21,042,794,038,504.56/6,438,532.40
  6. Step 6: Final answer
    x = 3,268,259.40

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Similar ratio
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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.