Home / 21,921,254.20-32,881,881.30-21,039,455.80

Finding the Fourth Proportional to 21,921,254.20, 32,881,881.30 and 21,039,455.80

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Solution

The fourth proportional to 21,921,254.20, 32,881,881.30 and 21,039,455.80 is: 31,559,183.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,921,254.20 : 32,881,881.30 = 21,039,455.80 : x
  2. Step 2: Convert to fraction form
    21,921,254.20/32,881,881.30 = 21,039,455.80/x
  3. Step 3: Cross multiply
    21,921,254.20x = 32,881,881.30 × 21,039,455.80
  4. Step 4: Simplify right side
    21,921,254.20x = 691,816,888,232,196.62
  5. Step 5: Solve for x
    x = 691,816,888,232,196.62/21,921,254.20
  6. Step 6: Final answer
    x = 31,559,183.70

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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.