Home / 12,225,853.60-18,338,780.40-6,557,149.60

Finding the Fourth Proportional to 12,225,853.60, 18,338,780.40 and 6,557,149.60

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Solution

The fourth proportional to 12,225,853.60, 18,338,780.40 and 6,557,149.60 is: 9,835,724.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225,853.60 : 18,338,780.40 = 6,557,149.60 : x
  2. Step 2: Convert to fraction form
    12,225,853.60/18,338,780.40 = 6,557,149.60/x
  3. Step 3: Cross multiply
    12,225,853.60x = 18,338,780.40 × 6,557,149.60
  4. Step 4: Simplify right side
    12,225,853.60x = 120,250,126,564,347.83
  5. Step 5: Solve for x
    x = 120,250,126,564,347.83/12,225,853.60
  6. Step 6: Final answer
    x = 9,835,724.40

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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.