Home / 279,937,007.40-419,905,511.10-75,485,749.80

Finding the Fourth Proportional to 279,937,007.40, 419,905,511.10 and 75,485,749.80

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Solution

The fourth proportional to 279,937,007.40, 419,905,511.10 and 75,485,749.80 is: 113,228,624.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,937,007.40 : 419,905,511.10 = 75,485,749.80 : x
  2. Step 2: Convert to fraction form
    279,937,007.40/419,905,511.10 = 75,485,749.80/x
  3. Step 3: Cross multiply
    279,937,007.40x = 419,905,511.10 × 75,485,749.80
  4. Step 4: Simplify right side
    279,937,007.40x = 31,696,882,350,535,724
  5. Step 5: Solve for x
    x = 31,696,882,350,535,724/279,937,007.40
  6. Step 6: Final answer
    x = 113,228,624.70

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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.