Home / 478,334,067.32-717,241,461.70-215,711,340.39

Finding the Fourth Proportional to 478,334,067.32, 717,241,461.70 and 215,711,340.39

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Solution

The fourth proportional to 478,334,067.32, 717,241,461.70 and 215,711,340.39 is: 323,449,922.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,334,067.32 : 717,241,461.70 = 215,711,340.39 : x
  2. Step 2: Convert to fraction form
    478,334,067.32/717,241,461.70 = 215,711,340.39/x
  3. Step 3: Cross multiply
    478,334,067.32x = 717,241,461.70 × 215,711,340.39
  4. Step 4: Simplify right side
    478,334,067.32x = 154,717,117,086,589,856
  5. Step 5: Solve for x
    x = 154,717,117,086,589,856/478,334,067.32
  6. Step 6: Final answer
    x = 323,449,922.67

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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.