Home / 28,356,330.80-42,534,496.20-9,189,025.40

Finding the Fourth Proportional to 28,356,330.80, 42,534,496.20 and 9,189,025.40

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Solution

The fourth proportional to 28,356,330.80, 42,534,496.20 and 9,189,025.40 is: 13,783,538.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,356,330.80 : 42,534,496.20 = 9,189,025.40 : x
  2. Step 2: Convert to fraction form
    28,356,330.80/42,534,496.20 = 9,189,025.40/x
  3. Step 3: Cross multiply
    28,356,330.80x = 42,534,496.20 × 9,189,025.40
  4. Step 4: Simplify right side
    28,356,330.80x = 390,850,565,958,003.50
  5. Step 5: Solve for x
    x = 390,850,565,958,003.50/28,356,330.80
  6. Step 6: Final answer
    x = 13,783,538.10

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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.