Home / 12,438,173.82-17,164,446.68-6,931,427.48

Finding the Fourth Proportional to 12,438,173.82, 17,164,446.68 and 6,931,427.48

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Solution

The fourth proportional to 12,438,173.82, 17,164,446.68 and 6,931,427.48 is: 9,565,239.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438,173.82 : 17,164,446.68 = 6,931,427.48 : x
  2. Step 2: Convert to fraction form
    12,438,173.82/17,164,446.68 = 6,931,427.48/x
  3. Step 3: Cross multiply
    12,438,173.82x = 17,164,446.68 × 6,931,427.48
  4. Step 4: Simplify right side
    12,438,173.82x = 118,974,117,396,746.77
  5. Step 5: Solve for x
    x = 118,974,117,396,746.77/12,438,173.82
  6. Step 6: Final answer
    x = 9,565,239.97

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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.