Home / 878,486,318.73-1,212,313,421.88-476,600,046.57

Finding the Fourth Proportional to 878,486,318.73, 1,212,313,421.88 and 476,600,046.57

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Solution

The fourth proportional to 878,486,318.73, 1,212,313,421.88 and 476,600,046.57 is: 657,709,313.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,486,318.73 : 1,212,313,421.88 = 476,600,046.57 : x
  2. Step 2: Convert to fraction form
    878,486,318.73/1,212,313,421.88 = 476,600,046.57/x
  3. Step 3: Cross multiply
    878,486,318.73x = 1,212,313,421.88 × 476,600,046.57
  4. Step 4: Simplify right side
    878,486,318.73x = 577,788,633,325,444,096
  5. Step 5: Solve for x
    x = 577,788,633,325,444,096/878,486,318.73
  6. Step 6: Final answer
    x = 657,709,313.17

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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.