Home / 12,781,265.34-17,638,286.31-6,980,218.14

Finding the Fourth Proportional to 12,781,265.34, 17,638,286.31 and 6,980,218.14

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Solution

The fourth proportional to 12,781,265.34, 17,638,286.31 and 6,980,218.14 is: 9,632,777.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,265.34 : 17,638,286.31 = 6,980,218.14 : x
  2. Step 2: Convert to fraction form
    12,781,265.34/17,638,286.31 = 6,980,218.14/x
  3. Step 3: Cross multiply
    12,781,265.34x = 17,638,286.31 × 6,980,218.14
  4. Step 4: Simplify right side
    12,781,265.34x = 123,119,086,059,575.64
  5. Step 5: Solve for x
    x = 123,119,086,059,575.64/12,781,265.34
  6. Step 6: Final answer
    x = 9,632,777.57

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1.5x scale

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.