Home / 21,905,917.20-32,795,890.20-21,276,061.20

Finding the Fourth Proportional to 21,905,917.20, 32,795,890.20 and 21,276,061.20

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Solution

The fourth proportional to 21,905,917.20, 32,795,890.20 and 21,276,061.20 is: 31,852,917.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,905,917.20 : 32,795,890.20 = 21,276,061.20 : x
  2. Step 2: Convert to fraction form
    21,905,917.20/32,795,890.20 = 21,276,061.20/x
  3. Step 3: Cross multiply
    21,905,917.20x = 32,795,890.20 × 21,276,061.20
  4. Step 4: Simplify right side
    21,905,917.20x = 697,767,367,003,680.25
  5. Step 5: Solve for x
    x = 697,767,367,003,680.25/21,905,917.20
  6. Step 6: Final answer
    x = 31,852,917.21

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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.