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Finding the Fourth Proportional to 100,368,445.80, 150,552,668.70 and 54,451,943.40

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Solution

The fourth proportional to 100,368,445.80, 150,552,668.70 and 54,451,943.40 is: 81,677,915.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,368,445.80 : 150,552,668.70 = 54,451,943.40 : x
  2. Step 2: Convert to fraction form
    100,368,445.80/150,552,668.70 = 54,451,943.40/x
  3. Step 3: Cross multiply
    100,368,445.80x = 150,552,668.70 × 54,451,943.40
  4. Step 4: Simplify right side
    100,368,445.80x = 8,197,885,394,771,351
  5. Step 5: Solve for x
    x = 8,197,885,394,771,351/100,368,445.80
  6. Step 6: Final answer
    x = 81,677,915.10

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1.5x scale

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.