Home / 315,026,915.20-472,398,655.20-120,873,803.20

Finding the Fourth Proportional to 315,026,915.20, 472,398,655.20 and 120,873,803.20

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Solution

The fourth proportional to 315,026,915.20, 472,398,655.20 and 120,873,803.20 is: 181,256,328.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,026,915.20 : 472,398,655.20 = 120,873,803.20 : x
  2. Step 2: Convert to fraction form
    315,026,915.20/472,398,655.20 = 120,873,803.20/x
  3. Step 3: Cross multiply
    315,026,915.20x = 472,398,655.20 × 120,873,803.20
  4. Step 4: Simplify right side
    315,026,915.20x = 57,100,622,080,589,456
  5. Step 5: Solve for x
    x = 57,100,622,080,589,456/315,026,915.20
  6. Step 6: Final answer
    x = 181,256,328.67

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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.