Home / 699,302,879.76-965,033,064.72-381,763,125.66

Finding the Fourth Proportional to 699,302,879.76, 965,033,064.72 and 381,763,125.66

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Solution

The fourth proportional to 699,302,879.76, 965,033,064.72 and 381,763,125.66 is: 526,830,433.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,302,879.76 : 965,033,064.72 = 381,763,125.66 : x
  2. Step 2: Convert to fraction form
    699,302,879.76/965,033,064.72 = 381,763,125.66/x
  3. Step 3: Cross multiply
    699,302,879.76x = 965,033,064.72 × 381,763,125.66
  4. Step 4: Simplify right side
    699,302,879.76x = 368,414,039,152,756,288
  5. Step 5: Solve for x
    x = 368,414,039,152,756,288/699,302,879.76
  6. Step 6: Final answer
    x = 526,830,433.30

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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.