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Finding the Fourth Proportional to 267,685,389.80, 401,528,084.70 and 199,660,941.80

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Solution

The fourth proportional to 267,685,389.80, 401,528,084.70 and 199,660,941.80 is: 299,491,412.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,685,389.80 : 401,528,084.70 = 199,660,941.80 : x
  2. Step 2: Convert to fraction form
    267,685,389.80/401,528,084.70 = 199,660,941.80/x
  3. Step 3: Cross multiply
    267,685,389.80x = 401,528,084.70 × 199,660,941.80
  4. Step 4: Simplify right side
    267,685,389.80x = 80,169,475,550,352,176
  5. Step 5: Solve for x
    x = 80,169,475,550,352,176/267,685,389.80
  6. Step 6: Final answer
    x = 299,491,412.70

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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.