Home / 403,691,561.79-557,094,568.77-218,052,577.14

Finding the Fourth Proportional to 403,691,561.79, 557,094,568.77 and 218,052,577.14

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Solution

The fourth proportional to 403,691,561.79, 557,094,568.77 and 218,052,577.14 is: 300,912,671.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,691,561.79 : 557,094,568.77 = 218,052,577.14 : x
  2. Step 2: Convert to fraction form
    403,691,561.79/557,094,568.77 = 218,052,577.14/x
  3. Step 3: Cross multiply
    403,691,561.79x = 557,094,568.77 × 218,052,577.14
  4. Step 4: Simplify right side
    403,691,561.79x = 121,475,906,430,995,440
  5. Step 5: Solve for x
    x = 121,475,906,430,995,440/403,691,561.79
  6. Step 6: Final answer
    x = 300,912,671.77

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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.