Home / 699,438,774.87-965,238,944.36-381,911,610.50

Finding the Fourth Proportional to 699,438,774.87, 965,238,944.36 and 381,911,610.50

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Solution

The fourth proportional to 699,438,774.87, 965,238,944.36 and 381,911,610.50 is: 527,045,358.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,438,774.87 : 965,238,944.36 = 381,911,610.50 : x
  2. Step 2: Convert to fraction form
    699,438,774.87/965,238,944.36 = 381,911,610.50/x
  3. Step 3: Cross multiply
    699,438,774.87x = 965,238,944.36 × 381,911,610.50
  4. Step 4: Simplify right side
    699,438,774.87x = 368,635,959,757,847,488
  5. Step 5: Solve for x
    x = 368,635,959,757,847,488/699,438,774.87
  6. Step 6: Final answer
    x = 527,045,358.37

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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.