Home / 13,215,238.90-18,240,381.96-9,030,618.52

Finding the Fourth Proportional to 13,215,238.90, 18,240,381.96 and 9,030,618.52

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Solution

The fourth proportional to 13,215,238.90, 18,240,381.96 and 9,030,618.52 is: 12,464,544.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215,238.90 : 18,240,381.96 = 9,030,618.52 : x
  2. Step 2: Convert to fraction form
    13,215,238.90/18,240,381.96 = 9,030,618.52/x
  3. Step 3: Cross multiply
    13,215,238.90x = 18,240,381.96 × 9,030,618.52
  4. Step 4: Simplify right side
    13,215,238.90x = 164,721,931,139,849.91
  5. Step 5: Solve for x
    x = 164,721,931,139,849.91/13,215,238.90
  6. Step 6: Final answer
    x = 12,464,544.33

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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.