Home / 15,418,899.27-21,280,347-8,891,253.75

Finding the Fourth Proportional to 15,418,899.27, 21,280,347 and 8,891,253.75

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Solution

The fourth proportional to 15,418,899.27, 21,280,347 and 8,891,253.75 is: 12,271,236.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,418,899.27 : 21,280,347 = 8,891,253.75 : x
  2. Step 2: Convert to fraction form
    15,418,899.27/21,280,347 = 8,891,253.75/x
  3. Step 3: Cross multiply
    15,418,899.27x = 21,280,347 × 8,891,253.75
  4. Step 4: Simplify right side
    15,418,899.27x = 189,208,965,065,051.25
  5. Step 5: Solve for x
    x = 189,208,965,065,051.25/15,418,899.27
  6. Step 6: Final answer
    x = 12,271,236.86

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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.