Home / 21,457,165.12-29,611,041.90-11,667,539.15

Finding the Fourth Proportional to 21,457,165.12, 29,611,041.90 and 11,667,539.15

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Solution

The fourth proportional to 21,457,165.12, 29,611,041.90 and 11,667,539.15 is: 16,101,287.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457,165.12 : 29,611,041.90 = 11,667,539.15 : x
  2. Step 2: Convert to fraction form
    21,457,165.12/29,611,041.90 = 11,667,539.15/x
  3. Step 3: Cross multiply
    21,457,165.12x = 29,611,041.90 × 11,667,539.15
  4. Step 4: Simplify right side
    21,457,165.12x = 345,487,990,791,965.31
  5. Step 5: Solve for x
    x = 345,487,990,791,965.31/21,457,165.12
  6. Step 6: Final answer
    x = 16,101,287.79

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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.