Home / 21,779,433.20-32,669,149.80-18,378,210.80

Finding the Fourth Proportional to 21,779,433.20, 32,669,149.80 and 18,378,210.80

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Solution

The fourth proportional to 21,779,433.20, 32,669,149.80 and 18,378,210.80 is: 27,567,316.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,779,433.20 : 32,669,149.80 = 18,378,210.80 : x
  2. Step 2: Convert to fraction form
    21,779,433.20/32,669,149.80 = 18,378,210.80/x
  3. Step 3: Cross multiply
    21,779,433.20x = 32,669,149.80 × 18,378,210.80
  4. Step 4: Simplify right side
    21,779,433.20x = 600,400,521,681,177.88
  5. Step 5: Solve for x
    x = 600,400,521,681,177.88/21,779,433.20
  6. Step 6: Final answer
    x = 27,567,316.20

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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.