Home / 20,779,548.89-28,675,816.38-11,612,191.64

Finding the Fourth Proportional to 20,779,548.89, 28,675,816.38 and 11,612,191.64

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Solution

The fourth proportional to 20,779,548.89, 28,675,816.38 and 11,612,191.64 is: 16,024,846.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,779,548.89 : 28,675,816.38 = 11,612,191.64 : x
  2. Step 2: Convert to fraction form
    20,779,548.89/28,675,816.38 = 11,612,191.64/x
  3. Step 3: Cross multiply
    20,779,548.89x = 28,675,816.38 × 11,612,191.64
  4. Step 4: Simplify right side
    20,779,548.89x = 332,989,075,094,631.94
  5. Step 5: Solve for x
    x = 332,989,075,094,631.94/20,779,548.89
  6. Step 6: Final answer
    x = 16,024,846.21

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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.