Home / 21,890,981.60-32,836,472.40-13,828,824.80

Finding the Fourth Proportional to 21,890,981.60, 32,836,472.40 and 13,828,824.80

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Solution

The fourth proportional to 21,890,981.60, 32,836,472.40 and 13,828,824.80 is: 20,743,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,890,981.60 : 32,836,472.40 = 13,828,824.80 : x
  2. Step 2: Convert to fraction form
    21,890,981.60/32,836,472.40 = 13,828,824.80/x
  3. Step 3: Cross multiply
    21,890,981.60x = 32,836,472.40 × 13,828,824.80
  4. Step 4: Simplify right side
    21,890,981.60x = 454,089,823,869,635.50
  5. Step 5: Solve for x
    x = 454,089,823,869,635.50/21,890,981.60
  6. Step 6: Final answer
    x = 20,743,237.20

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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.