Home / 12,816,642.72-17,686,992.93-7,015,794.66

Finding the Fourth Proportional to 12,816,642.72, 17,686,992.93 and 7,015,794.66

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Solution

The fourth proportional to 12,816,642.72, 17,686,992.93 and 7,015,794.66 is: 9,681,810.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,816,642.72 : 17,686,992.93 = 7,015,794.66 : x
  2. Step 2: Convert to fraction form
    12,816,642.72/17,686,992.93 = 7,015,794.66/x
  3. Step 3: Cross multiply
    12,816,642.72x = 17,686,992.93 × 7,015,794.66
  4. Step 4: Simplify right side
    12,816,642.72x = 124,088,310,549,751.75
  5. Step 5: Solve for x
    x = 124,088,310,549,751.75/12,816,642.72
  6. Step 6: Final answer
    x = 9,681,810.85

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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.