Home / 15,491,568.04-21,377,688.01-8,521,803.79

Finding the Fourth Proportional to 15,491,568.04, 21,377,688.01 and 8,521,803.79

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Solution

The fourth proportional to 15,491,568.04, 21,377,688.01 and 8,521,803.79 is: 11,759,717.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,491,568.04 : 21,377,688.01 = 8,521,803.79 : x
  2. Step 2: Convert to fraction form
    15,491,568.04/21,377,688.01 = 8,521,803.79/x
  3. Step 3: Cross multiply
    15,491,568.04x = 21,377,688.01 × 8,521,803.79
  4. Step 4: Simplify right side
    15,491,568.04x = 182,176,462,705,055.56
  5. Step 5: Solve for x
    x = 182,176,462,705,055.56/15,491,568.04
  6. Step 6: Final answer
    x = 11,759,717.43

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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.