Home / 699,368,943.34-965,113,807.44-381,818,336.68

Finding the Fourth Proportional to 699,368,943.34, 965,113,807.44 and 381,818,336.68

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Solution

The fourth proportional to 699,368,943.34, 965,113,807.44 and 381,818,336.68 is: 526,900,932.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,368,943.34 : 965,113,807.44 = 381,818,336.68 : x
  2. Step 2: Convert to fraction form
    699,368,943.34/965,113,807.44 = 381,818,336.68/x
  3. Step 3: Cross multiply
    699,368,943.34x = 965,113,807.44 × 381,818,336.68
  4. Step 4: Simplify right side
    699,368,943.34x = 368,498,148,663,642,624
  5. Step 5: Solve for x
    x = 368,498,148,663,642,624/699,368,943.34
  6. Step 6: Final answer
    x = 526,900,932.87

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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.