Home / 38,714,860.85-53,428,030.92-21,312,825.30

Finding the Fourth Proportional to 38,714,860.85, 53,428,030.92 and 21,312,825.30

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Solution

The fourth proportional to 38,714,860.85, 53,428,030.92 and 21,312,825.30 is: 29,412,537.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,714,860.85 : 53,428,030.92 = 21,312,825.30 : x
  2. Step 2: Convert to fraction form
    38,714,860.85/53,428,030.92 = 21,312,825.30/x
  3. Step 3: Cross multiply
    38,714,860.85x = 53,428,030.92 × 21,312,825.30
  4. Step 4: Simplify right side
    38,714,860.85x = 1,138,702,289,120,958.25
  5. Step 5: Solve for x
    x = 1,138,702,289,120,958.25/38,714,860.85
  6. Step 6: Final answer
    x = 29,412,537.31

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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.