Home / 310,746,349.68-428,765,947.96-178,561,808.16

Finding the Fourth Proportional to 310,746,349.68, 428,765,947.96 and 178,561,808.16

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Solution

The fourth proportional to 310,746,349.68, 428,765,947.96 and 178,561,808.16 is: 246,378,511.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,746,349.68 : 428,765,947.96 = 178,561,808.16 : x
  2. Step 2: Convert to fraction form
    310,746,349.68/428,765,947.96 = 178,561,808.16/x
  3. Step 3: Cross multiply
    310,746,349.68x = 428,765,947.96 × 178,561,808.16
  4. Step 4: Simplify right side
    310,746,349.68x = 76,561,222,945,174,064
  5. Step 5: Solve for x
    x = 76,561,222,945,174,064/310,746,349.68
  6. Step 6: Final answer
    x = 246,378,511.04

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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.