Home / 282,753,917.39-390,203,996.94-155,609,234.61

Finding the Fourth Proportional to 282,753,917.39, 390,203,996.94 and 155,609,234.61

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Solution

The fourth proportional to 282,753,917.39, 390,203,996.94 and 155,609,234.61 is: 214,742,719.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,753,917.39 : 390,203,996.94 = 155,609,234.61 : x
  2. Step 2: Convert to fraction form
    282,753,917.39/390,203,996.94 = 155,609,234.61/x
  3. Step 3: Cross multiply
    282,753,917.39x = 390,203,996.94 × 155,609,234.61
  4. Step 4: Simplify right side
    282,753,917.39x = 60,719,345,305,596,184
  5. Step 5: Solve for x
    x = 60,719,345,305,596,184/282,753,917.39
  6. Step 6: Final answer
    x = 214,742,719.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.