Home / 21,515,770.80-32,291,281.80-21,347,809.20

Finding the Fourth Proportional to 21,515,770.80, 32,291,281.80 and 21,347,809.20

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Solution

The fourth proportional to 21,515,770.80, 32,291,281.80 and 21,347,809.20 is: 32,039,201.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,515,770.80 : 32,291,281.80 = 21,347,809.20 : x
  2. Step 2: Convert to fraction form
    21,515,770.80/32,291,281.80 = 21,347,809.20/x
  3. Step 3: Cross multiply
    21,515,770.80x = 32,291,281.80 × 21,347,809.20
  4. Step 4: Simplify right side
    21,515,770.80x = 689,348,122,689,832.50
  5. Step 5: Solve for x
    x = 689,348,122,689,832.50/21,515,770.80
  6. Step 6: Final answer
    x = 32,039,201.81

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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.