Home / 21,211,673.10-29,271,284.98-12,965,542.21

Finding the Fourth Proportional to 21,211,673.10, 29,271,284.98 and 12,965,542.21

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Solution

The fourth proportional to 21,211,673.10, 29,271,284.98 and 12,965,542.21 is: 17,891,944.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,211,673.10 : 29,271,284.98 = 12,965,542.21 : x
  2. Step 2: Convert to fraction form
    21,211,673.10/29,271,284.98 = 12,965,542.21/x
  3. Step 3: Cross multiply
    21,211,673.10x = 29,271,284.98 × 12,965,542.21
  4. Step 4: Simplify right side
    21,211,673.10x = 379,518,080,949,129.06
  5. Step 5: Solve for x
    x = 379,518,080,949,129.06/21,211,673.10
  6. Step 6: Final answer
    x = 17,891,944.65

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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.