Home / 878,486,287.19-1,212,313,378.37-476,600,015.07

Finding the Fourth Proportional to 878,486,287.19, 1,212,313,378.37 and 476,600,015.07

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Solution

The fourth proportional to 878,486,287.19, 1,212,313,378.37 and 476,600,015.07 is: 657,709,269.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,486,287.19 : 1,212,313,378.37 = 476,600,015.07 : x
  2. Step 2: Convert to fraction form
    878,486,287.19/1,212,313,378.37 = 476,600,015.07/x
  3. Step 3: Cross multiply
    878,486,287.19x = 1,212,313,378.37 × 476,600,015.07
  4. Step 4: Simplify right side
    878,486,287.19x = 577,788,574,398,321,664
  5. Step 5: Solve for x
    x = 577,788,574,398,321,664/878,486,287.19
  6. Step 6: Final answer
    x = 657,709,269.71

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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.