Home / 315,023,026.20-472,392,821.70-120,869,914.20

Finding the Fourth Proportional to 315,023,026.20, 472,392,821.70 and 120,869,914.20

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Solution

The fourth proportional to 315,023,026.20, 472,392,821.70 and 120,869,914.20 is: 181,250,496.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,023,026.20 : 472,392,821.70 = 120,869,914.20 : x
  2. Step 2: Convert to fraction form
    315,023,026.20/472,392,821.70 = 120,869,914.20/x
  3. Step 3: Cross multiply
    315,023,026.20x = 472,392,821.70 × 120,869,914.20
  4. Step 4: Simplify right side
    315,023,026.20x = 57,098,079,827,574,896
  5. Step 5: Solve for x
    x = 57,098,079,827,574,896/315,023,026.20
  6. Step 6: Final answer
    x = 181,250,496.25

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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.