Home / 321,024,699.74-443,024,990.52-306,314,828.30

Finding the Fourth Proportional to 321,024,699.74, 443,024,990.52 and 306,314,828.30

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Solution

The fourth proportional to 321,024,699.74, 443,024,990.52 and 306,314,828.30 is: 422,724,868.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,024,699.74 : 443,024,990.52 = 306,314,828.30 : x
  2. Step 2: Convert to fraction form
    321,024,699.74/443,024,990.52 = 306,314,828.30/x
  3. Step 3: Cross multiply
    321,024,699.74x = 443,024,990.52 × 306,314,828.30
  4. Step 4: Simplify right side
    321,024,699.74x = 135,705,123,903,742,928
  5. Step 5: Solve for x
    x = 135,705,123,903,742,928/321,024,699.74
  6. Step 6: Final answer
    x = 422,724,868.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.