Home / 7,128,002.10-10,692,003.15-3,532,379.70

Finding the Fourth Proportional to 7,128,002.10, 10,692,003.15 and 3,532,379.70

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Solution

The fourth proportional to 7,128,002.10, 10,692,003.15 and 3,532,379.70 is: 5,298,569.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,002.10 : 10,692,003.15 = 3,532,379.70 : x
  2. Step 2: Convert to fraction form
    7,128,002.10/10,692,003.15 = 3,532,379.70/x
  3. Step 3: Cross multiply
    7,128,002.10x = 10,692,003.15 × 3,532,379.70
  4. Step 4: Simplify right side
    7,128,002.10x = 37,768,214,879,396.05
  5. Step 5: Solve for x
    x = 37,768,214,879,396.05/7,128,002.10
  6. Step 6: Final answer
    x = 5,298,569.55

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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.