Home / 12,457,769.40-18,686,654.10-7,334,940.60

Finding the Fourth Proportional to 12,457,769.40, 18,686,654.10 and 7,334,940.60

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Solution

The fourth proportional to 12,457,769.40, 18,686,654.10 and 7,334,940.60 is: 11,002,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,769.40 : 18,686,654.10 = 7,334,940.60 : x
  2. Step 2: Convert to fraction form
    12,457,769.40/18,686,654.10 = 7,334,940.60/x
  3. Step 3: Cross multiply
    12,457,769.40x = 18,686,654.10 × 7,334,940.60
  4. Step 4: Simplify right side
    12,457,769.40x = 137,065,497,836,246.47
  5. Step 5: Solve for x
    x = 137,065,497,836,246.47/12,457,769.40
  6. Step 6: Final answer
    x = 11,002,410.90

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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.