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Finding the Fourth Proportional to 34,784,898.80, 52,177,348.20 and 21,851,855.60

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Solution

The fourth proportional to 34,784,898.80, 52,177,348.20 and 21,851,855.60 is: 32,777,783.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,784,898.80 : 52,177,348.20 = 21,851,855.60 : x
  2. Step 2: Convert to fraction form
    34,784,898.80/52,177,348.20 = 21,851,855.60/x
  3. Step 3: Cross multiply
    34,784,898.80x = 52,177,348.20 × 21,851,855.60
  4. Step 4: Simplify right side
    34,784,898.80x = 1,140,171,878,457,320
  5. Step 5: Solve for x
    x = 1,140,171,878,457,320/34,784,898.80
  6. Step 6: Final answer
    x = 32,777,783.40

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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.