Home / 30,167,420.20-45,251,130.30-9,972,662.20

Finding the Fourth Proportional to 30,167,420.20, 45,251,130.30 and 9,972,662.20

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Solution

The fourth proportional to 30,167,420.20, 45,251,130.30 and 9,972,662.20 is: 14,958,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,167,420.20 : 45,251,130.30 = 9,972,662.20 : x
  2. Step 2: Convert to fraction form
    30,167,420.20/45,251,130.30 = 9,972,662.20/x
  3. Step 3: Cross multiply
    30,167,420.20x = 45,251,130.30 × 9,972,662.20
  4. Step 4: Simplify right side
    30,167,420.20x = 451,274,236,650,084.62
  5. Step 5: Solve for x
    x = 451,274,236,650,084.62/30,167,420.20
  6. Step 6: Final answer
    x = 14,958,993.30

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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.