Home / 18,466,868.80-25,471,061.40-12,961,471.96

Finding the Fourth Proportional to 18,466,868.80, 25,471,061.40 and 12,961,471.96

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Solution

The fourth proportional to 18,466,868.80, 25,471,061.40 and 12,961,471.96 is: 17,877,554.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,466,868.80 : 25,471,061.40 = 12,961,471.96 : x
  2. Step 2: Convert to fraction form
    18,466,868.80/25,471,061.40 = 12,961,471.96/x
  3. Step 3: Cross multiply
    18,466,868.80x = 25,471,061.40 × 12,961,471.96
  4. Step 4: Simplify right side
    18,466,868.80x = 330,142,448,127,538.38
  5. Step 5: Solve for x
    x = 330,142,448,127,538.38/18,466,868.80
  6. Step 6: Final answer
    x = 17,877,554.21

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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.