Home / 878,586,685.62-1,212,446,298.92-482,116,308.63

Finding the Fourth Proportional to 878,586,685.62, 1,212,446,298.92 and 482,116,308.63

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Solution

The fourth proportional to 878,586,685.62, 1,212,446,298.92 and 482,116,308.63 is: 665,318,680.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,586,685.62 : 1,212,446,298.92 = 482,116,308.63 : x
  2. Step 2: Convert to fraction form
    878,586,685.62/1,212,446,298.92 = 482,116,308.63/x
  3. Step 3: Cross multiply
    878,586,685.62x = 1,212,446,298.92 × 482,116,308.63
  4. Step 4: Simplify right side
    878,586,685.62x = 584,540,134,045,005,312
  5. Step 5: Solve for x
    x = 584,540,134,045,005,312/878,586,685.62
  6. Step 6: Final answer
    x = 665,318,680.12

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