Home / 12,572,509.11-18,942,774.59-11,359,494.69

Finding the Fourth Proportional to 12,572,509.11, 18,942,774.59 and 11,359,494.69

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Solution

The fourth proportional to 12,572,509.11, 18,942,774.59 and 11,359,494.69 is: 17,115,147.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572,509.11 : 18,942,774.59 = 11,359,494.69 : x
  2. Step 2: Convert to fraction form
    12,572,509.11/18,942,774.59 = 11,359,494.69/x
  3. Step 3: Cross multiply
    12,572,509.11x = 18,942,774.59 × 11,359,494.69
  4. Step 4: Simplify right side
    12,572,509.11x = 215,180,347,312,174.47
  5. Step 5: Solve for x
    x = 215,180,347,312,174.47/12,572,509.11
  6. Step 6: Final answer
    x = 17,115,147.46

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.