Home / 12,320,878.74-16,995,987.18-7,163,670.30

Finding the Fourth Proportional to 12,320,878.74, 16,995,987.18 and 7,163,670.30

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Solution

The fourth proportional to 12,320,878.74, 16,995,987.18 and 7,163,670.30 is: 9,881,896.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320,878.74 : 16,995,987.18 = 7,163,670.30 : x
  2. Step 2: Convert to fraction form
    12,320,878.74/16,995,987.18 = 7,163,670.30/x
  3. Step 3: Cross multiply
    12,320,878.74x = 16,995,987.18 × 7,163,670.30
  4. Step 4: Simplify right side
    12,320,878.74x = 121,753,648,580,546.75
  5. Step 5: Solve for x
    x = 121,753,648,580,546.75/12,320,878.74
  6. Step 6: Final answer
    x = 9,881,896.51

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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.