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Finding the Fourth Proportional to 67,303,253.60, 100,954,880.40 and 21,869,640.80

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Solution

The fourth proportional to 67,303,253.60, 100,954,880.40 and 21,869,640.80 is: 32,804,461.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,303,253.60 : 100,954,880.40 = 21,869,640.80 : x
  2. Step 2: Convert to fraction form
    67,303,253.60/100,954,880.40 = 21,869,640.80/x
  3. Step 3: Cross multiply
    67,303,253.60x = 100,954,880.40 × 21,869,640.80
  4. Step 4: Simplify right side
    67,303,253.60x = 2,207,846,971,354,960.50
  5. Step 5: Solve for x
    x = 2,207,846,971,354,960.50/67,303,253.60
  6. Step 6: Final answer
    x = 32,804,461.20

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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.