Home / 475,270,673.80-712,906,010.70-312,011,998.60

Finding the Fourth Proportional to 475,270,673.80, 712,906,010.70 and 312,011,998.60

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Solution

The fourth proportional to 475,270,673.80, 712,906,010.70 and 312,011,998.60 is: 468,017,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,270,673.80 : 712,906,010.70 = 312,011,998.60 : x
  2. Step 2: Convert to fraction form
    475,270,673.80/712,906,010.70 = 312,011,998.60/x
  3. Step 3: Cross multiply
    475,270,673.80x = 712,906,010.70 × 312,011,998.60
  4. Step 4: Simplify right side
    475,270,673.80x = 222,435,229,212,460,032
  5. Step 5: Solve for x
    x = 222,435,229,212,460,032/475,270,673.80
  6. Step 6: Final answer
    x = 468,017,997.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.