Home / 278,468,188,879.17-417,701,761,571.67-87,254,864,657.67

Finding the Fourth Proportional to 278,468,188,879.17, 417,701,761,571.67 and 87,254,864,657.67

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Solution

The fourth proportional to 278,468,188,879.17, 417,701,761,571.67 and 87,254,864,657.67 is: 130,882,133,502.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,468,188,879.17 : 417,701,761,571.67 = 87,254,864,657.67 : x
  2. Step 2: Convert to fraction form
    278,468,188,879.17/417,701,761,571.67 = 87,254,864,657.67/x
  3. Step 3: Cross multiply
    278,468,188,879.17x = 417,701,761,571.67 × 87,254,864,657.67
  4. Step 4: Simplify right side
    278,468,188,879.17x = 36,446,510,673,206,408,380,416
  5. Step 5: Solve for x
    x = 36,446,510,673,206,408,380,416/278,468,188,879.17
  6. Step 6: Final answer
    x = 130,882,133,502.94

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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.