Home / 280,051,704.30-420,077,556.45-178,266,974.70

Finding the Fourth Proportional to 280,051,704.30, 420,077,556.45 and 178,266,974.70

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Solution

The fourth proportional to 280,051,704.30, 420,077,556.45 and 178,266,974.70 is: 267,400,462.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,051,704.30 : 420,077,556.45 = 178,266,974.70 : x
  2. Step 2: Convert to fraction form
    280,051,704.30/420,077,556.45 = 178,266,974.70/x
  3. Step 3: Cross multiply
    280,051,704.30x = 420,077,556.45 × 178,266,974.70
  4. Step 4: Simplify right side
    280,051,704.30x = 74,885,955,127,709,968
  5. Step 5: Solve for x
    x = 74,885,955,127,709,968/280,051,704.30
  6. Step 6: Final answer
    x = 267,400,462.05

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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.