Home / 9,191,121.80-12,683,748.04-5,061,143.08

Finding the Fourth Proportional to 9,191,121.80, 12,683,748.04 and 5,061,143.08

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Solution

The fourth proportional to 9,191,121.80, 12,683,748.04 and 5,061,143.08 is: 6,984,377.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,191,121.80 : 12,683,748.04 = 5,061,143.08 : x
  2. Step 2: Convert to fraction form
    9,191,121.80/12,683,748.04 = 5,061,143.08/x
  3. Step 3: Cross multiply
    9,191,121.80x = 12,683,748.04 × 5,061,143.08
  4. Step 4: Simplify right side
    9,191,121.80x = 64,194,263,621,109.56
  5. Step 5: Solve for x
    x = 64,194,263,621,109.56/9,191,121.80
  6. Step 6: Final answer
    x = 6,984,377.43

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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.