Home / 13,612,811.40-20,442,836.70-7,235,519.40

Finding the Fourth Proportional to 13,612,811.40, 20,442,836.70 and 7,235,519.40

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Solution

The fourth proportional to 13,612,811.40, 20,442,836.70 and 7,235,519.40 is: 10,865,833.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,612,811.40 : 20,442,836.70 = 7,235,519.40 : x
  2. Step 2: Convert to fraction form
    13,612,811.40/20,442,836.70 = 7,235,519.40/x
  3. Step 3: Cross multiply
    13,612,811.40x = 20,442,836.70 × 7,235,519.40
  4. Step 4: Simplify right side
    13,612,811.40x = 147,914,541,533,881.97
  5. Step 5: Solve for x
    x = 147,914,541,533,881.97/13,612,811.40
  6. Step 6: Final answer
    x = 10,865,833.46

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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.