Home / 13,201,215.53-18,219,545.25-7,322,149.49

Finding the Fourth Proportional to 13,201,215.53, 18,219,545.25 and 7,322,149.49

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Solution

The fourth proportional to 13,201,215.53, 18,219,545.25 and 7,322,149.49 is: 10,105,602.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,201,215.53 : 18,219,545.25 = 7,322,149.49 : x
  2. Step 2: Convert to fraction form
    13,201,215.53/18,219,545.25 = 7,322,149.49/x
  3. Step 3: Cross multiply
    13,201,215.53x = 18,219,545.25 × 7,322,149.49
  4. Step 4: Simplify right side
    13,201,215.53x = 133,406,233,960,319.42
  5. Step 5: Solve for x
    x = 133,406,233,960,319.42/13,201,215.53
  6. Step 6: Final answer
    x = 10,105,602.30

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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.