Home / 699,235,508.93-964,944,856.83-385,969,639.88

Finding the Fourth Proportional to 699,235,508.93, 964,944,856.83 and 385,969,639.88

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Solution

The fourth proportional to 699,235,508.93, 964,944,856.83 and 385,969,639.88 is: 532,638,022.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,235,508.93 : 964,944,856.83 = 385,969,639.88 : x
  2. Step 2: Convert to fraction form
    699,235,508.93/964,944,856.83 = 385,969,639.88/x
  3. Step 3: Cross multiply
    699,235,508.93x = 964,944,856.83 × 385,969,639.88
  4. Step 4: Simplify right side
    699,235,508.93x = 372,439,418,894,733,248
  5. Step 5: Solve for x
    x = 372,439,418,894,733,248/699,235,508.93
  6. Step 6: Final answer
    x = 532,638,022.72

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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.