Home / 12,912,248.13-17,818,687.11-7,111,569.62

Finding the Fourth Proportional to 12,912,248.13, 17,818,687.11 and 7,111,569.62

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Solution

The fourth proportional to 12,912,248.13, 17,818,687.11 and 7,111,569.62 is: 9,813,847.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912,248.13 : 17,818,687.11 = 7,111,569.62 : x
  2. Step 2: Convert to fraction form
    12,912,248.13/17,818,687.11 = 7,111,569.62/x
  3. Step 3: Cross multiply
    12,912,248.13x = 17,818,687.11 × 7,111,569.62
  4. Step 4: Simplify right side
    12,912,248.13x = 126,718,833,795,110.33
  5. Step 5: Solve for x
    x = 126,718,833,795,110.33/12,912,248.13
  6. Step 6: Final answer
    x = 9,813,847.48

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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.