Home / 38,721,613.32-53,433,797.81-21,314,558.61

Finding the Fourth Proportional to 38,721,613.32, 53,433,797.81 and 21,314,558.61

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Solution

The fourth proportional to 38,721,613.32, 53,433,797.81 and 21,314,558.61 is: 29,412,974.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,721,613.32 : 53,433,797.81 = 21,314,558.61 : x
  2. Step 2: Convert to fraction form
    38,721,613.32/53,433,797.81 = 21,314,558.61/x
  3. Step 3: Cross multiply
    38,721,613.32x = 53,433,797.81 × 21,314,558.61
  4. Step 4: Simplify right side
    38,721,613.32x = 1,138,917,815,069,561.75
  5. Step 5: Solve for x
    x = 1,138,917,815,069,561.75/38,721,613.32
  6. Step 6: Final answer
    x = 29,412,974.24

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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.