Home / 315,026,892.70-472,398,621.45-120,873,780.70

Finding the Fourth Proportional to 315,026,892.70, 472,398,621.45 and 120,873,780.70

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Solution

The fourth proportional to 315,026,892.70, 472,398,621.45 and 120,873,780.70 is: 181,256,294.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,026,892.70 : 472,398,621.45 = 120,873,780.70 : x
  2. Step 2: Convert to fraction form
    315,026,892.70/472,398,621.45 = 120,873,780.70/x
  3. Step 3: Cross multiply
    315,026,892.70x = 472,398,621.45 × 120,873,780.70
  4. Step 4: Simplify right side
    315,026,892.70x = 57,100,607,372,129,616
  5. Step 5: Solve for x
    x = 57,100,607,372,129,616/315,026,892.70
  6. Step 6: Final answer
    x = 181,256,294.92

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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.