Home / 12,998,190.96-17,938,513.44-7,197,512.40

Finding the Fourth Proportional to 12,998,190.96, 17,938,513.44 and 7,197,512.40

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Solution

The fourth proportional to 12,998,190.96, 17,938,513.44 and 7,197,512.40 is: 9,933,126.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,998,190.96 : 17,938,513.44 = 7,197,512.40 : x
  2. Step 2: Convert to fraction form
    12,998,190.96/17,938,513.44 = 7,197,512.40/x
  3. Step 3: Cross multiply
    12,998,190.96x = 17,938,513.44 × 7,197,512.40
  4. Step 4: Simplify right side
    12,998,190.96x = 129,112,672,921,966.67
  5. Step 5: Solve for x
    x = 129,112,672,921,966.67/12,998,190.96
  6. Step 6: Final answer
    x = 9,933,126.33

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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.