Home / 699,172,530,598.14-964,847,907,672.38-390,528,281,502.60

Finding the Fourth Proportional to 699,172,530,598.14, 964,847,907,672.38 and 390,528,281,502.60

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Solution

The fourth proportional to 699,172,530,598.14, 964,847,907,672.38 and 390,528,281,502.60 is: 538,923,339,811.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,172,530,598.14 : 964,847,907,672.38 = 390,528,281,502.60 : x
  2. Step 2: Convert to fraction form
    699,172,530,598.14/964,847,907,672.38 = 390,528,281,502.60/x
  3. Step 3: Cross multiply
    699,172,530,598.14x = 964,847,907,672.38 × 390,528,281,502.60
  4. Step 4: Simplify right side
    699,172,530,598.14x = 376,800,395,294,673,784,012,800
  5. Step 5: Solve for x
    x = 376,800,395,294,673,784,012,800/699,172,530,598.14
  6. Step 6: Final answer
    x = 538,923,339,811.88

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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.