Home / 282,753,917.89-390,203,997.63-155,609,235.11

Finding the Fourth Proportional to 282,753,917.89, 390,203,997.63 and 155,609,235.11

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Solution

The fourth proportional to 282,753,917.89, 390,203,997.63 and 155,609,235.11 is: 214,742,720.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,753,917.89 : 390,203,997.63 = 155,609,235.11 : x
  2. Step 2: Convert to fraction form
    282,753,917.89/390,203,997.63 = 155,609,235.11/x
  3. Step 3: Cross multiply
    282,753,917.89x = 390,203,997.63 × 155,609,235.11
  4. Step 4: Simplify right side
    282,753,917.89x = 60,719,345,608,068,560
  5. Step 5: Solve for x
    x = 60,719,345,608,068,560/282,753,917.89
  6. Step 6: Final answer
    x = 214,742,720.67

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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.