Home / 21,666,980.60-32,508,765.30-21,326,910.20

Finding the Fourth Proportional to 21,666,980.60, 32,508,765.30 and 21,326,910.20

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Solution

The fourth proportional to 21,666,980.60, 32,508,765.30 and 21,326,910.20 is: 31,998,529.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,666,980.60 : 32,508,765.30 = 21,326,910.20 : x
  2. Step 2: Convert to fraction form
    21,666,980.60/32,508,765.30 = 21,326,910.20/x
  3. Step 3: Cross multiply
    21,666,980.60x = 32,508,765.30 × 21,326,910.20
  4. Step 4: Simplify right side
    21,666,980.60x = 693,311,518,265,976
  5. Step 5: Solve for x
    x = 693,311,518,265,976/21,666,980.60
  6. Step 6: Final answer
    x = 31,998,529.52

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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.