Home / 38,639,328.38-53,323,551.94-21,236,290.46

Finding the Fourth Proportional to 38,639,328.38, 53,323,551.94 and 21,236,290.46

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Solution

The fourth proportional to 38,639,328.38, 53,323,551.94 and 21,236,290.46 is: 29,306,783.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,639,328.38 : 53,323,551.94 = 21,236,290.46 : x
  2. Step 2: Convert to fraction form
    38,639,328.38/53,323,551.94 = 21,236,290.46/x
  3. Step 3: Cross multiply
    38,639,328.38x = 53,323,551.94 × 21,236,290.46
  4. Step 4: Simplify right side
    38,639,328.38x = 1,132,394,437,356,736.50
  5. Step 5: Solve for x
    x = 1,132,394,437,356,736.50/38,639,328.38
  6. Step 6: Final answer
    x = 29,306,783.65

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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.