Home / 38,591,338.12-53,253,660.59-21,187,585.78

Finding the Fourth Proportional to 38,591,338.12, 53,253,660.59 and 21,187,585.78

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Solution

The fourth proportional to 38,591,338.12, 53,253,660.59 and 21,187,585.78 is: 29,237,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,591,338.12 : 53,253,660.59 = 21,187,585.78 : x
  2. Step 2: Convert to fraction form
    38,591,338.12/53,253,660.59 = 21,187,585.78/x
  3. Step 3: Cross multiply
    38,591,338.12x = 53,253,660.59 × 21,187,585.78
  4. Step 4: Simplify right side
    38,591,338.12x = 1,128,316,501,849,630.50
  5. Step 5: Solve for x
    x = 1,128,316,501,849,630.50/38,591,338.12
  6. Step 6: Final answer
    x = 29,237,558.40

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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.