Home / 285,655,072.08-388,930,285.52-284,748,079.44

Finding the Fourth Proportional to 285,655,072.08, 388,930,285.52 and 284,748,079.44

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Solution

The fourth proportional to 285,655,072.08, 388,930,285.52 and 284,748,079.44 is: 387,695,380.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,655,072.08 : 388,930,285.52 = 284,748,079.44 : x
  2. Step 2: Convert to fraction form
    285,655,072.08/388,930,285.52 = 284,748,079.44/x
  3. Step 3: Cross multiply
    285,655,072.08x = 388,930,285.52 × 284,748,079.44
  4. Step 4: Simplify right side
    285,655,072.08x = 110,747,151,837,870,832
  5. Step 5: Solve for x
    x = 110,747,151,837,870,832/285,655,072.08
  6. Step 6: Final answer
    x = 387,695,380.42

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.