Home / 18,217,023.36-27,287,741.76-10,620,950.40

Finding the Fourth Proportional to 18,217,023.36, 27,287,741.76 and 10,620,950.40

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Solution

The fourth proportional to 18,217,023.36, 27,287,741.76 and 10,620,950.40 is: 15,909,391.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217,023.36 : 27,287,741.76 = 10,620,950.40 : x
  2. Step 2: Convert to fraction form
    18,217,023.36/27,287,741.76 = 10,620,950.40/x
  3. Step 3: Cross multiply
    18,217,023.36x = 27,287,741.76 × 10,620,950.40
  4. Step 4: Simplify right side
    18,217,023.36x = 289,821,751,760,968.75
  5. Step 5: Solve for x
    x = 289,821,751,760,968.75/18,217,023.36
  6. Step 6: Final answer
    x = 15,909,391.23

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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.