Home / 878,586,686.62-1,212,446,300.30-482,116,309.63

Finding the Fourth Proportional to 878,586,686.62, 1,212,446,300.30 and 482,116,309.63

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Solution

The fourth proportional to 878,586,686.62, 1,212,446,300.30 and 482,116,309.63 is: 665,318,681.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,586,686.62 : 1,212,446,300.30 = 482,116,309.63 : x
  2. Step 2: Convert to fraction form
    878,586,686.62/1,212,446,300.30 = 482,116,309.63/x
  3. Step 3: Cross multiply
    878,586,686.62x = 1,212,446,300.30 × 482,116,309.63
  4. Step 4: Simplify right side
    878,586,686.62x = 584,540,135,925,182,720
  5. Step 5: Solve for x
    x = 584,540,135,925,182,720/878,586,686.62
  6. Step 6: Final answer
    x = 665,318,681.50

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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.