Home / 12,805,560.08-19,221,325.07-11,355,909.86

Finding the Fourth Proportional to 12,805,560.08, 19,221,325.07 and 11,355,909.86

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Solution

The fourth proportional to 12,805,560.08, 19,221,325.07 and 11,355,909.86 is: 17,045,379.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,805,560.08 : 19,221,325.07 = 11,355,909.86 : x
  2. Step 2: Convert to fraction form
    12,805,560.08/19,221,325.07 = 11,355,909.86/x
  3. Step 3: Cross multiply
    12,805,560.08x = 19,221,325.07 × 11,355,909.86
  4. Step 4: Simplify right side
    12,805,560.08x = 218,275,634,961,121.31
  5. Step 5: Solve for x
    x = 218,275,634,961,121.31/12,805,560.08
  6. Step 6: Final answer
    x = 17,045,379.79

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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.