Home / 400,531,501.12-600,700,146.68-109,399,987.84

Finding the Fourth Proportional to 400,531,501.12, 600,700,146.68 and 109,399,987.84

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Solution

The fourth proportional to 400,531,501.12, 600,700,146.68 and 109,399,987.84 is: 164,073,458.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,531,501.12 : 600,700,146.68 = 109,399,987.84 : x
  2. Step 2: Convert to fraction form
    400,531,501.12/600,700,146.68 = 109,399,987.84/x
  3. Step 3: Cross multiply
    400,531,501.12x = 600,700,146.68 × 109,399,987.84
  4. Step 4: Simplify right side
    400,531,501.12x = 65,716,588,742,278,216
  5. Step 5: Solve for x
    x = 65,716,588,742,278,216/400,531,501.12
  6. Step 6: Final answer
    x = 164,073,458.79

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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.