Home / 13,122,011.80-19,683,017.70-6,665,003.65

Finding the Fourth Proportional to 13,122,011.80, 19,683,017.70 and 6,665,003.65

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Solution

The fourth proportional to 13,122,011.80, 19,683,017.70 and 6,665,003.65 is: 9,997,505.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,011.80 : 19,683,017.70 = 6,665,003.65 : x
  2. Step 2: Convert to fraction form
    13,122,011.80/19,683,017.70 = 6,665,003.65/x
  3. Step 3: Cross multiply
    13,122,011.80x = 19,683,017.70 × 6,665,003.65
  4. Step 4: Simplify right side
    13,122,011.80x = 131,187,384,813,514.61
  5. Step 5: Solve for x
    x = 131,187,384,813,514.61/13,122,011.80
  6. Step 6: Final answer
    x = 9,997,505.48

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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.