Home / 18,145,943.40-27,218,915.10-6,178,679.40

Finding the Fourth Proportional to 18,145,943.40, 27,218,915.10 and 6,178,679.40

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Solution

The fourth proportional to 18,145,943.40, 27,218,915.10 and 6,178,679.40 is: 9,268,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,145,943.40 : 27,218,915.10 = 6,178,679.40 : x
  2. Step 2: Convert to fraction form
    18,145,943.40/27,218,915.10 = 6,178,679.40/x
  3. Step 3: Cross multiply
    18,145,943.40x = 27,218,915.10 × 6,178,679.40
  4. Step 4: Simplify right side
    18,145,943.40x = 168,176,950,018,718.97
  5. Step 5: Solve for x
    x = 168,176,950,018,718.97/18,145,943.40
  6. Step 6: Final answer
    x = 9,268,019.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.