Home / 61,328,145.60-91,992,218.40-38,653,329.60

Finding the Fourth Proportional to 61,328,145.60, 91,992,218.40 and 38,653,329.60

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Solution

The fourth proportional to 61,328,145.60, 91,992,218.40 and 38,653,329.60 is: 57,979,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,328,145.60 : 91,992,218.40 = 38,653,329.60 : x
  2. Step 2: Convert to fraction form
    61,328,145.60/91,992,218.40 = 38,653,329.60/x
  3. Step 3: Cross multiply
    61,328,145.60x = 91,992,218.40 × 38,653,329.60
  4. Step 4: Simplify right side
    61,328,145.60x = 3,555,805,538,450,385
  5. Step 5: Solve for x
    x = 3,555,805,538,450,385/61,328,145.60
  6. Step 6: Final answer
    x = 57,979,994.40

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.