Home / 7,128,003.70-10,692,005.55-5,616,349.30

Finding the Fourth Proportional to 7,128,003.70, 10,692,005.55 and 5,616,349.30

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Solution

The fourth proportional to 7,128,003.70, 10,692,005.55 and 5,616,349.30 is: 8,424,523.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,003.70 : 10,692,005.55 = 5,616,349.30 : x
  2. Step 2: Convert to fraction form
    7,128,003.70/10,692,005.55 = 5,616,349.30/x
  3. Step 3: Cross multiply
    7,128,003.70x = 10,692,005.55 × 5,616,349.30
  4. Step 4: Simplify right side
    7,128,003.70x = 60,050,037,886,338.62
  5. Step 5: Solve for x
    x = 60,050,037,886,338.62/7,128,003.70
  6. Step 6: Final answer
    x = 8,424,523.95

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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.