Home / 400,356,048.60-600,534,072.90-239,112,912.60

Finding the Fourth Proportional to 400,356,048.60, 600,534,072.90 and 239,112,912.60

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Solution

The fourth proportional to 400,356,048.60, 600,534,072.90 and 239,112,912.60 is: 358,669,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,356,048.60 : 600,534,072.90 = 239,112,912.60 : x
  2. Step 2: Convert to fraction form
    400,356,048.60/600,534,072.90 = 239,112,912.60/x
  3. Step 3: Cross multiply
    400,356,048.60x = 600,534,072.90 × 239,112,912.60
  4. Step 4: Simplify right side
    400,356,048.60x = 143,595,451,286,659,712
  5. Step 5: Solve for x
    x = 143,595,451,286,659,712/400,356,048.60
  6. Step 6: Final answer
    x = 358,669,368.90

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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.