Home / 21,461,261.37-29,694,522.02-18,713,678.64

Finding the Fourth Proportional to 21,461,261.37, 29,694,522.02 and 18,713,678.64

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Solution

The fourth proportional to 21,461,261.37, 29,694,522.02 and 18,713,678.64 is: 25,892,874.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,461,261.37 : 29,694,522.02 = 18,713,678.64 : x
  2. Step 2: Convert to fraction form
    21,461,261.37/29,694,522.02 = 18,713,678.64/x
  3. Step 3: Cross multiply
    21,461,261.37x = 29,694,522.02 × 18,713,678.64
  4. Step 4: Simplify right side
    21,461,261.37x = 555,693,742,357,115.31
  5. Step 5: Solve for x
    x = 555,693,742,357,115.31/21,461,261.37
  6. Step 6: Final answer
    x = 25,892,874.27

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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.