Home / 287,784,185.40-431,676,278.10-201,619,884.60

Finding the Fourth Proportional to 287,784,185.40, 431,676,278.10 and 201,619,884.60

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Solution

The fourth proportional to 287,784,185.40, 431,676,278.10 and 201,619,884.60 is: 302,429,826.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,784,185.40 : 431,676,278.10 = 201,619,884.60 : x
  2. Step 2: Convert to fraction form
    287,784,185.40/431,676,278.10 = 201,619,884.60/x
  3. Step 3: Cross multiply
    287,784,185.40x = 431,676,278.10 × 201,619,884.60
  4. Step 4: Simplify right side
    287,784,185.40x = 87,034,521,375,079,504
  5. Step 5: Solve for x
    x = 87,034,521,375,079,504/287,784,185.40
  6. Step 6: Final answer
    x = 302,429,826.90

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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.