Home / 315,026,755.20-472,398,415.20-120,873,643.20

Finding the Fourth Proportional to 315,026,755.20, 472,398,415.20 and 120,873,643.20

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Solution

The fourth proportional to 315,026,755.20, 472,398,415.20 and 120,873,643.20 is: 181,256,088.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,026,755.20 : 472,398,415.20 = 120,873,643.20 : x
  2. Step 2: Convert to fraction form
    315,026,755.20/472,398,415.20 = 120,873,643.20/x
  3. Step 3: Cross multiply
    315,026,755.20x = 472,398,415.20 × 120,873,643.20
  4. Step 4: Simplify right side
    315,026,755.20x = 57,100,517,487,130,256
  5. Step 5: Solve for x
    x = 57,100,517,487,130,256/315,026,755.20
  6. Step 6: Final answer
    x = 181,256,088.71

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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.