Home / 21,335,215.25-31,989,862.85-8,365,827.30

Finding the Fourth Proportional to 21,335,215.25, 31,989,862.85 and 8,365,827.30

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Solution

The fourth proportional to 21,335,215.25, 31,989,862.85 and 8,365,827.30 is: 12,543,659.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335,215.25 : 31,989,862.85 = 8,365,827.30 : x
  2. Step 2: Convert to fraction form
    21,335,215.25/31,989,862.85 = 8,365,827.30/x
  3. Step 3: Cross multiply
    21,335,215.25x = 31,989,862.85 × 8,365,827.30
  4. Step 4: Simplify right side
    21,335,215.25x = 267,621,667,911,956.66
  5. Step 5: Solve for x
    x = 267,621,667,911,956.66/21,335,215.25
  6. Step 6: Final answer
    x = 12,543,659.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.