Home / 699,172,530,583.05-964,847,907,651.50-390,528,281,487.50

Finding the Fourth Proportional to 699,172,530,583.05, 964,847,907,651.50 and 390,528,281,487.50

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Solution

The fourth proportional to 699,172,530,583.05, 964,847,907,651.50 and 390,528,281,487.50 is: 538,923,339,791.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,172,530,583.05 : 964,847,907,651.50 = 390,528,281,487.50 : x
  2. Step 2: Convert to fraction form
    699,172,530,583.05/964,847,907,651.50 = 390,528,281,487.50/x
  3. Step 3: Cross multiply
    699,172,530,583.05x = 964,847,907,651.50 × 390,528,281,487.50
  4. Step 4: Simplify right side
    699,172,530,583.05x = 376,800,395,271,950,387,118,080
  5. Step 5: Solve for x
    x = 376,800,395,271,950,387,118,080/699,172,530,583.05
  6. Step 6: Final answer
    x = 538,923,339,791.01

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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.