Home / 38,910,628.10-53,695,730.18-21,268,739

Finding the Fourth Proportional to 38,910,628.10, 53,695,730.18 and 21,268,739

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Solution

The fourth proportional to 38,910,628.10, 53,695,730.18 and 21,268,739 is: 29,350,347.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,910,628.10 : 53,695,730.18 = 21,268,739 : x
  2. Step 2: Convert to fraction form
    38,910,628.10/53,695,730.18 = 21,268,739/x
  3. Step 3: Cross multiply
    38,910,628.10x = 53,695,730.18 × 21,268,739
  4. Step 4: Simplify right side
    38,910,628.10x = 1,142,040,470,612,843
  5. Step 5: Solve for x
    x = 1,142,040,470,612,843/38,910,628.10
  6. Step 6: Final answer
    x = 29,350,347.87

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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.