Home / 20,779,554.90-28,675,824.66-11,612,197.64

Finding the Fourth Proportional to 20,779,554.90, 28,675,824.66 and 11,612,197.64

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Solution

The fourth proportional to 20,779,554.90, 28,675,824.66 and 11,612,197.64 is: 16,024,854.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,779,554.90 : 28,675,824.66 = 11,612,197.64 : x
  2. Step 2: Convert to fraction form
    20,779,554.90/28,675,824.66 = 11,612,197.64/x
  3. Step 3: Cross multiply
    20,779,554.90x = 28,675,824.66 × 11,612,197.64
  4. Step 4: Simplify right side
    20,779,554.90x = 332,989,343,441,905.81
  5. Step 5: Solve for x
    x = 332,989,343,441,905.81/20,779,554.90
  6. Step 6: Final answer
    x = 16,024,854.48

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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.