Home / 278,451,538,823.61-417,251,001,087.30-187,355,538,353.67

Finding the Fourth Proportional to 278,451,538,823.61, 417,251,001,087.30 and 187,355,538,353.67

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Solution

The fourth proportional to 278,451,538,823.61, 417,251,001,087.30 and 187,355,538,353.67 is: 280,746,467,653.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,451,538,823.61 : 417,251,001,087.30 = 187,355,538,353.67 : x
  2. Step 2: Convert to fraction form
    278,451,538,823.61/417,251,001,087.30 = 187,355,538,353.67/x
  3. Step 3: Cross multiply
    278,451,538,823.61x = 417,251,001,087.30 × 187,355,538,353.67
  4. Step 4: Simplify right side
    278,451,538,823.61x = 78,174,285,937,318,836,568,064
  5. Step 5: Solve for x
    x = 78,174,285,937,318,836,568,064/278,451,538,823.61
  6. Step 6: Final answer
    x = 280,746,467,653.17

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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.