Home / 21,747,935.84-30,013,228.80-13,490,658.61

Finding the Fourth Proportional to 21,747,935.84, 30,013,228.80 and 13,490,658.61

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Solution

The fourth proportional to 21,747,935.84, 30,013,228.80 and 13,490,658.61 is: 18,617,777.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,747,935.84 : 30,013,228.80 = 13,490,658.61 : x
  2. Step 2: Convert to fraction form
    21,747,935.84/30,013,228.80 = 13,490,658.61/x
  3. Step 3: Cross multiply
    21,747,935.84x = 30,013,228.80 × 13,490,658.61
  4. Step 4: Simplify right side
    21,747,935.84x = 404,898,223,449,586.88
  5. Step 5: Solve for x
    x = 404,898,223,449,586.88/21,747,935.84
  6. Step 6: Final answer
    x = 18,617,777.18

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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.