Home / 878,586,388.50-1,212,445,890.14-482,116,012.82

Finding the Fourth Proportional to 878,586,388.50, 1,212,445,890.14 and 482,116,012.82

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Solution

The fourth proportional to 878,586,388.50, 1,212,445,890.14 and 482,116,012.82 is: 665,318,272.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,586,388.50 : 1,212,445,890.14 = 482,116,012.82 : x
  2. Step 2: Convert to fraction form
    878,586,388.50/1,212,445,890.14 = 482,116,012.82/x
  3. Step 3: Cross multiply
    878,586,388.50x = 1,212,445,890.14 × 482,116,012.82
  4. Step 4: Simplify right side
    878,586,388.50x = 584,539,578,314,292,608
  5. Step 5: Solve for x
    x = 584,539,578,314,292,608/878,586,388.50
  6. Step 6: Final answer
    x = 665,318,272.59

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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.