Home / 20,779,549.60-28,675,817.35-11,612,192.35

Finding the Fourth Proportional to 20,779,549.60, 28,675,817.35 and 11,612,192.35

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Solution

The fourth proportional to 20,779,549.60, 28,675,817.35 and 11,612,192.35 is: 16,024,847.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,779,549.60 : 28,675,817.35 = 11,612,192.35 : x
  2. Step 2: Convert to fraction form
    20,779,549.60/28,675,817.35 = 11,612,192.35/x
  3. Step 3: Cross multiply
    20,779,549.60x = 28,675,817.35 × 11,612,192.35
  4. Step 4: Simplify right side
    20,779,549.60x = 332,989,106,861,667.25
  5. Step 5: Solve for x
    x = 332,989,106,861,667.25/20,779,549.60
  6. Step 6: Final answer
    x = 16,024,847.18

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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.