Home / 13,138,211.07-18,131,282.19-7,556,459.22

Finding the Fourth Proportional to 13,138,211.07, 18,131,282.19 and 7,556,459.22

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Solution

The fourth proportional to 13,138,211.07, 18,131,282.19 and 7,556,459.22 is: 10,428,230.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,138,211.07 : 18,131,282.19 = 7,556,459.22 : x
  2. Step 2: Convert to fraction form
    13,138,211.07/18,131,282.19 = 7,556,459.22/x
  3. Step 3: Cross multiply
    13,138,211.07x = 18,131,282.19 × 7,556,459.22
  4. Step 4: Simplify right side
    13,138,211.07x = 137,008,294,475,047.30
  5. Step 5: Solve for x
    x = 137,008,294,475,047.30/13,138,211.07
  6. Step 6: Final answer
    x = 10,428,230.58

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Double scale
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1.5x scale

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.