Home / 21,211,675.10-29,271,287.74-12,965,544.22

Finding the Fourth Proportional to 21,211,675.10, 29,271,287.74 and 12,965,544.22

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Solution

The fourth proportional to 21,211,675.10, 29,271,287.74 and 12,965,544.22 is: 17,891,947.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,211,675.10 : 29,271,287.74 = 12,965,544.22 : x
  2. Step 2: Convert to fraction form
    21,211,675.10/29,271,287.74 = 12,965,544.22/x
  3. Step 3: Cross multiply
    21,211,675.10x = 29,271,287.74 × 12,965,544.22
  4. Step 4: Simplify right side
    21,211,675.10x = 379,518,175,569,313.88
  5. Step 5: Solve for x
    x = 379,518,175,569,313.88/21,211,675.10
  6. Step 6: Final answer
    x = 17,891,947.42

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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.