Home / 13,111,037.80-19,666,556.70-12,462,231.40

Finding the Fourth Proportional to 13,111,037.80, 19,666,556.70 and 12,462,231.40

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Solution

The fourth proportional to 13,111,037.80, 19,666,556.70 and 12,462,231.40 is: 18,693,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,111,037.80 : 19,666,556.70 = 12,462,231.40 : x
  2. Step 2: Convert to fraction form
    13,111,037.80/19,666,556.70 = 12,462,231.40/x
  3. Step 3: Cross multiply
    13,111,037.80x = 19,666,556.70 × 12,462,231.40
  4. Step 4: Simplify right side
    13,111,037.80x = 245,089,180,436,620.38
  5. Step 5: Solve for x
    x = 245,089,180,436,620.38/13,111,037.80
  6. Step 6: Final answer
    x = 18,693,347.10

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Similar ratio
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1.5x scale

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.