Home / 3,855,420.30-5,320,510.83-2,136,569.34

Finding the Fourth Proportional to 3,855,420.30, 5,320,510.83 and 2,136,569.34

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Solution

The fourth proportional to 3,855,420.30, 5,320,510.83 and 2,136,569.34 is: 2,948,482.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855,420.30 : 5,320,510.83 = 2,136,569.34 : x
  2. Step 2: Convert to fraction form
    3,855,420.30/5,320,510.83 = 2,136,569.34/x
  3. Step 3: Cross multiply
    3,855,420.30x = 5,320,510.83 × 2,136,569.34
  4. Step 4: Simplify right side
    3,855,420.30x = 11,367,640,312,515.95
  5. Step 5: Solve for x
    x = 11,367,640,312,515.95/3,855,420.30
  6. Step 6: Final answer
    x = 2,948,482.77

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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.