Home / 12,912,760.48-17,819,392.08-7,112,082.40

Finding the Fourth Proportional to 12,912,760.48, 17,819,392.08 and 7,112,082.40

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Solution

The fourth proportional to 12,912,760.48, 17,819,392.08 and 7,112,082.40 is: 9,814,553.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912,760.48 : 17,819,392.08 = 7,112,082.40 : x
  2. Step 2: Convert to fraction form
    12,912,760.48/17,819,392.08 = 7,112,082.40/x
  3. Step 3: Cross multiply
    12,912,760.48x = 17,819,392.08 × 7,112,082.40
  4. Step 4: Simplify right side
    12,912,760.48x = 126,732,984,790,867.39
  5. Step 5: Solve for x
    x = 126,732,984,790,867.39/12,912,760.48
  6. Step 6: Final answer
    x = 9,814,553.98

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1.5x scale

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.