Home / 21,461,261.62-29,694,522.36-18,713,678.90

Finding the Fourth Proportional to 21,461,261.62, 29,694,522.36 and 18,713,678.90

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Solution

The fourth proportional to 21,461,261.62, 29,694,522.36 and 18,713,678.90 is: 25,892,874.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,461,261.62 : 29,694,522.36 = 18,713,678.90 : x
  2. Step 2: Convert to fraction form
    21,461,261.62/29,694,522.36 = 18,713,678.90/x
  3. Step 3: Cross multiply
    21,461,261.62x = 29,694,522.36 × 18,713,678.90
  4. Step 4: Simplify right side
    21,461,261.62x = 555,693,756,533,910.12
  5. Step 5: Solve for x
    x = 555,693,756,533,910.12/21,461,261.62
  6. Step 6: Final answer
    x = 25,892,874.63

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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.