Home / 21,651,263-29,878,732.56-12,949,435.43

Finding the Fourth Proportional to 21,651,263, 29,878,732.56 and 12,949,435.43

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Solution

The fourth proportional to 21,651,263, 29,878,732.56 and 12,949,435.43 is: 17,870,214.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,651,263 : 29,878,732.56 = 12,949,435.43 : x
  2. Step 2: Convert to fraction form
    21,651,263/29,878,732.56 = 12,949,435.43/x
  3. Step 3: Cross multiply
    21,651,263x = 29,878,732.56 × 12,949,435.43
  4. Step 4: Simplify right side
    21,651,263x = 386,912,718,015,958.56
  5. Step 5: Solve for x
    x = 386,912,718,015,958.56/21,651,263
  6. Step 6: Final answer
    x = 17,870,214.69

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1.5x scale

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.