Home / 120,672,668.40-181,009,002.60-112,063,324.20

Finding the Fourth Proportional to 120,672,668.40, 181,009,002.60 and 112,063,324.20

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Solution

The fourth proportional to 120,672,668.40, 181,009,002.60 and 112,063,324.20 is: 168,094,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,672,668.40 : 181,009,002.60 = 112,063,324.20 : x
  2. Step 2: Convert to fraction form
    120,672,668.40/181,009,002.60 = 112,063,324.20/x
  3. Step 3: Cross multiply
    120,672,668.40x = 181,009,002.60 × 112,063,324.20
  4. Step 4: Simplify right side
    120,672,668.40x = 20,284,470,541,482,444
  5. Step 5: Solve for x
    x = 20,284,470,541,482,444/120,672,668.40
  6. Step 6: Final answer
    x = 168,094,986.30

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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.