Home / 20,779,554.81-28,675,824.51-11,612,197.56

Finding the Fourth Proportional to 20,779,554.81, 28,675,824.51 and 11,612,197.56

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Solution

The fourth proportional to 20,779,554.81, 28,675,824.51 and 11,612,197.56 is: 16,024,854.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,779,554.81 : 28,675,824.51 = 11,612,197.56 : x
  2. Step 2: Convert to fraction form
    20,779,554.81/28,675,824.51 = 11,612,197.56/x
  3. Step 3: Cross multiply
    20,779,554.81x = 28,675,824.51 × 11,612,197.56
  4. Step 4: Simplify right side
    20,779,554.81x = 332,989,339,406,010.25
  5. Step 5: Solve for x
    x = 332,989,339,406,010.25/20,779,554.81
  6. Step 6: Final answer
    x = 16,024,854.36

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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.