Home / 10,303,390.80-15,455,086.20-9,043,678.80

Finding the Fourth Proportional to 10,303,390.80, 15,455,086.20 and 9,043,678.80

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Solution

The fourth proportional to 10,303,390.80, 15,455,086.20 and 9,043,678.80 is: 13,565,518.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,303,390.80 : 15,455,086.20 = 9,043,678.80 : x
  2. Step 2: Convert to fraction form
    10,303,390.80/15,455,086.20 = 9,043,678.80/x
  3. Step 3: Cross multiply
    10,303,390.80x = 15,455,086.20 × 9,043,678.80
  4. Step 4: Simplify right side
    10,303,390.80x = 139,770,835,419,112.56
  5. Step 5: Solve for x
    x = 139,770,835,419,112.56/10,303,390.80
  6. Step 6: Final answer
    x = 13,565,518.20

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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.