Home / 315,022,699.20-472,392,331.20-120,869,587.20

Finding the Fourth Proportional to 315,022,699.20, 472,392,331.20 and 120,869,587.20

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Solution

The fourth proportional to 315,022,699.20, 472,392,331.20 and 120,869,587.20 is: 181,250,005.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,022,699.20 : 472,392,331.20 = 120,869,587.20 : x
  2. Step 2: Convert to fraction form
    315,022,699.20/472,392,331.20 = 120,869,587.20/x
  3. Step 3: Cross multiply
    315,022,699.20x = 472,392,331.20 × 120,869,587.20
  4. Step 4: Simplify right side
    315,022,699.20x = 57,097,866,068,589,680
  5. Step 5: Solve for x
    x = 57,097,866,068,589,680/315,022,699.20
  6. Step 6: Final answer
    x = 181,250,005.84

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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.