Home / 38,910,668.16-53,695,785.48-21,268,779.12

Finding the Fourth Proportional to 38,910,668.16, 53,695,785.48 and 21,268,779.12

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Solution

The fourth proportional to 38,910,668.16, 53,695,785.48 and 21,268,779.12 is: 29,350,403.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,910,668.16 : 53,695,785.48 = 21,268,779.12 : x
  2. Step 2: Convert to fraction form
    38,910,668.16/53,695,785.48 = 21,268,779.12/x
  3. Step 3: Cross multiply
    38,910,668.16x = 53,695,785.48 × 21,268,779.12
  4. Step 4: Simplify right side
    38,910,668.16x = 1,142,043,801,049,023.25
  5. Step 5: Solve for x
    x = 1,142,043,801,049,023.25/38,910,668.16
  6. Step 6: Final answer
    x = 29,350,403.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.