Home / 21,779,443.20-32,669,164.80-18,378,220.80

Finding the Fourth Proportional to 21,779,443.20, 32,669,164.80 and 18,378,220.80

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Solution

The fourth proportional to 21,779,443.20, 32,669,164.80 and 18,378,220.80 is: 27,567,331.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,779,443.20 : 32,669,164.80 = 18,378,220.80 : x
  2. Step 2: Convert to fraction form
    21,779,443.20/32,669,164.80 = 18,378,220.80/x
  3. Step 3: Cross multiply
    21,779,443.20x = 32,669,164.80 × 18,378,220.80
  4. Step 4: Simplify right side
    21,779,443.20x = 600,401,124,045,987.88
  5. Step 5: Solve for x
    x = 600,401,124,045,987.88/21,779,443.20
  6. Step 6: Final answer
    x = 27,567,331.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.