Home / 13,891,556.38-19,170,347.80-7,779,984.88

Finding the Fourth Proportional to 13,891,556.38, 19,170,347.80 and 7,779,984.88

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Solution

The fourth proportional to 13,891,556.38, 19,170,347.80 and 7,779,984.88 is: 10,736,379.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891,556.38 : 19,170,347.80 = 7,779,984.88 : x
  2. Step 2: Convert to fraction form
    13,891,556.38/19,170,347.80 = 7,779,984.88/x
  3. Step 3: Cross multiply
    13,891,556.38x = 19,170,347.80 × 7,779,984.88
  4. Step 4: Simplify right side
    13,891,556.38x = 149,145,015,913,039.56
  5. Step 5: Solve for x
    x = 149,145,015,913,039.56/13,891,556.38
  6. Step 6: Final answer
    x = 10,736,379.13

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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.