Home / 21,920,876.20-32,881,314.30-21,039,077.80

Finding the Fourth Proportional to 21,920,876.20, 32,881,314.30 and 21,039,077.80

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Solution

The fourth proportional to 21,920,876.20, 32,881,314.30 and 21,039,077.80 is: 31,558,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,920,876.20 : 32,881,314.30 = 21,039,077.80 : x
  2. Step 2: Convert to fraction form
    21,920,876.20/32,881,314.30 = 21,039,077.80/x
  3. Step 3: Cross multiply
    21,920,876.20x = 32,881,314.30 × 21,039,077.80
  4. Step 4: Simplify right side
    21,920,876.20x = 691,792,529,723,952.62
  5. Step 5: Solve for x
    x = 691,792,529,723,952.62/21,920,876.20
  6. Step 6: Final answer
    x = 31,558,616.70

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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.