Home / 878,586,678.50-1,212,446,289.11-482,116,301.48

Finding the Fourth Proportional to 878,586,678.50, 1,212,446,289.11 and 482,116,301.48

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Solution

The fourth proportional to 878,586,678.50, 1,212,446,289.11 and 482,116,301.48 is: 665,318,670.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,586,678.50 : 1,212,446,289.11 = 482,116,301.48 : x
  2. Step 2: Convert to fraction form
    878,586,678.50/1,212,446,289.11 = 482,116,301.48/x
  3. Step 3: Cross multiply
    878,586,678.50x = 1,212,446,289.11 × 482,116,301.48
  4. Step 4: Simplify right side
    878,586,678.50x = 584,540,120,649,484,544
  5. Step 5: Solve for x
    x = 584,540,120,649,484,544/878,586,678.50
  6. Step 6: Final answer
    x = 665,318,670.27

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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.