Home / 120,571,271.10-180,856,906.65-115,028,538.30

Finding the Fourth Proportional to 120,571,271.10, 180,856,906.65 and 115,028,538.30

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Solution

The fourth proportional to 120,571,271.10, 180,856,906.65 and 115,028,538.30 is: 172,542,807.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,571,271.10 : 180,856,906.65 = 115,028,538.30 : x
  2. Step 2: Convert to fraction form
    120,571,271.10/180,856,906.65 = 115,028,538.30/x
  3. Step 3: Cross multiply
    120,571,271.10x = 180,856,906.65 × 115,028,538.30
  4. Step 4: Simplify right side
    120,571,271.10x = 20,803,705,613,409,048
  5. Step 5: Solve for x
    x = 20,803,705,613,409,048/120,571,271.10
  6. Step 6: Final answer
    x = 172,542,807.45

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Similar ratio
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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.