Home / 18,191,921.55-27,287,882.33-11,734,913.40

Finding the Fourth Proportional to 18,191,921.55, 27,287,882.33 and 11,734,913.40

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Solution

The fourth proportional to 18,191,921.55, 27,287,882.33 and 11,734,913.40 is: 17,602,370.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,191,921.55 : 27,287,882.33 = 11,734,913.40 : x
  2. Step 2: Convert to fraction form
    18,191,921.55/27,287,882.33 = 11,734,913.40/x
  3. Step 3: Cross multiply
    18,191,921.55x = 27,287,882.33 × 11,734,913.40
  4. Step 4: Simplify right side
    18,191,921.55x = 320,220,935,953,265.69
  5. Step 5: Solve for x
    x = 320,220,935,953,265.69/18,191,921.55
  6. Step 6: Final answer
    x = 17,602,370.10

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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.