Home / 21,018,721.70-31,528,082.55-16,767,193.70

Finding the Fourth Proportional to 21,018,721.70, 31,528,082.55 and 16,767,193.70

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Solution

The fourth proportional to 21,018,721.70, 31,528,082.55 and 16,767,193.70 is: 25,150,790.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,018,721.70 : 31,528,082.55 = 16,767,193.70 : x
  2. Step 2: Convert to fraction form
    21,018,721.70/31,528,082.55 = 16,767,193.70/x
  3. Step 3: Cross multiply
    21,018,721.70x = 31,528,082.55 × 16,767,193.70
  4. Step 4: Simplify right side
    21,018,721.70x = 528,637,467,105,439.94
  5. Step 5: Solve for x
    x = 528,637,467,105,439.94/21,018,721.70
  6. Step 6: Final answer
    x = 25,150,790.55

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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.