Home / 30,162,379.20-45,243,568.80-9,967,621.20

Finding the Fourth Proportional to 30,162,379.20, 45,243,568.80 and 9,967,621.20

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Solution

The fourth proportional to 30,162,379.20, 45,243,568.80 and 9,967,621.20 is: 14,951,431.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,162,379.20 : 45,243,568.80 = 9,967,621.20 : x
  2. Step 2: Convert to fraction form
    30,162,379.20/45,243,568.80 = 9,967,621.20/x
  3. Step 3: Cross multiply
    30,162,379.20x = 45,243,568.80 × 9,967,621.20
  4. Step 4: Simplify right side
    30,162,379.20x = 450,970,755,534,538.50
  5. Step 5: Solve for x
    x = 450,970,755,534,538.50/30,162,379.20
  6. Step 6: Final answer
    x = 14,951,431.80

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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.