Home / 12,912,247.64-17,818,686.43-7,111,569.13

Finding the Fourth Proportional to 12,912,247.64, 17,818,686.43 and 7,111,569.13

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Solution

The fourth proportional to 12,912,247.64, 17,818,686.43 and 7,111,569.13 is: 9,813,846.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,912,247.64 : 17,818,686.43 = 7,111,569.13 : x
  2. Step 2: Convert to fraction form
    12,912,247.64/17,818,686.43 = 7,111,569.13/x
  3. Step 3: Cross multiply
    12,912,247.64x = 17,818,686.43 × 7,111,569.13
  4. Step 4: Simplify right side
    12,912,247.64x = 126,718,820,290,412.27
  5. Step 5: Solve for x
    x = 126,718,820,290,412.27/12,912,247.64
  6. Step 6: Final answer
    x = 9,813,846.81

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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.