Home / 201,903,998.80-302,855,998.20-129,344,587.60

Finding the Fourth Proportional to 201,903,998.80, 302,855,998.20 and 129,344,587.60

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Solution

The fourth proportional to 201,903,998.80, 302,855,998.20 and 129,344,587.60 is: 194,016,881.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,903,998.80 : 302,855,998.20 = 129,344,587.60 : x
  2. Step 2: Convert to fraction form
    201,903,998.80/302,855,998.20 = 129,344,587.60/x
  3. Step 3: Cross multiply
    201,903,998.80x = 302,855,998.20 × 129,344,587.60
  4. Step 4: Simplify right side
    201,903,998.80x = 39,172,784,189,365,336
  5. Step 5: Solve for x
    x = 39,172,784,189,365,336/201,903,998.80
  6. Step 6: Final answer
    x = 194,016,881.40

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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.