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Finding the Fourth Proportional to 201,793,617.20, 302,690,425.80 and 99,756,945.20

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Solution

The fourth proportional to 201,793,617.20, 302,690,425.80 and 99,756,945.20 is: 149,635,417.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,793,617.20 : 302,690,425.80 = 99,756,945.20 : x
  2. Step 2: Convert to fraction form
    201,793,617.20/302,690,425.80 = 99,756,945.20/x
  3. Step 3: Cross multiply
    201,793,617.20x = 302,690,425.80 × 99,756,945.20
  4. Step 4: Simplify right side
    201,793,617.20x = 30,195,472,219,095,268
  5. Step 5: Solve for x
    x = 30,195,472,219,095,268/201,793,617.20
  6. Step 6: Final answer
    x = 149,635,417.80

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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.