Home / 21,210,625.42-29,271,623.61-12,509,164.78

Finding the Fourth Proportional to 21,210,625.42, 29,271,623.61 and 12,509,164.78

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Solution

The fourth proportional to 21,210,625.42, 29,271,623.61 and 12,509,164.78 is: 17,263,213.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,210,625.42 : 29,271,623.61 = 12,509,164.78 : x
  2. Step 2: Convert to fraction form
    21,210,625.42/29,271,623.61 = 12,509,164.78/x
  3. Step 3: Cross multiply
    21,210,625.42x = 29,271,623.61 × 12,509,164.78
  4. Step 4: Simplify right side
    21,210,625.42x = 366,163,563,115,628.44
  5. Step 5: Solve for x
    x = 366,163,563,115,628.44/21,210,625.42
  6. Step 6: Final answer
    x = 17,263,213.88

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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.