Home / 7,171,423.90-9,896,276.25-3,908,168.60

Finding the Fourth Proportional to 7,171,423.90, 9,896,276.25 and 3,908,168.60

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Solution

The fourth proportional to 7,171,423.90, 9,896,276.25 and 3,908,168.60 is: 5,393,115.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171,423.90 : 9,896,276.25 = 3,908,168.60 : x
  2. Step 2: Convert to fraction form
    7,171,423.90/9,896,276.25 = 3,908,168.60/x
  3. Step 3: Cross multiply
    7,171,423.90x = 9,896,276.25 × 3,908,168.60
  4. Step 4: Simplify right side
    7,171,423.90x = 38,676,316,047,694.37
  5. Step 5: Solve for x
    x = 38,676,316,047,694.37/7,171,423.90
  6. Step 6: Final answer
    x = 5,393,115.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.