Home / 12,385,403.36-17,091,896.20-6,878,777.20

Finding the Fourth Proportional to 12,385,403.36, 17,091,896.20 and 6,878,777.20

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Solution

The fourth proportional to 12,385,403.36, 17,091,896.20 and 6,878,777.20 is: 9,492,734.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,385,403.36 : 17,091,896.20 = 6,878,777.20 : x
  2. Step 2: Convert to fraction form
    12,385,403.36/17,091,896.20 = 6,878,777.20/x
  3. Step 3: Cross multiply
    12,385,403.36x = 17,091,896.20 × 6,878,777.20
  4. Step 4: Simplify right side
    12,385,403.36x = 117,571,345,885,326.64
  5. Step 5: Solve for x
    x = 117,571,345,885,326.64/12,385,403.36
  6. Step 6: Final answer
    x = 9,492,734.51

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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.