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Finding the Fourth Proportional to 201,793,584.70, 302,690,377.05 and 99,756,912.70

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Solution

The fourth proportional to 201,793,584.70, 302,690,377.05 and 99,756,912.70 is: 149,635,369.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,793,584.70 : 302,690,377.05 = 99,756,912.70 : x
  2. Step 2: Convert to fraction form
    201,793,584.70/302,690,377.05 = 99,756,912.70/x
  3. Step 3: Cross multiply
    201,793,584.70x = 302,690,377.05 × 99,756,912.70
  4. Step 4: Simplify right side
    201,793,584.70x = 30,195,457,518,506,936
  5. Step 5: Solve for x
    x = 30,195,457,518,506,936/201,793,584.70
  6. Step 6: Final answer
    x = 149,635,369.05

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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.