Home / 528,003,080.40-792,004,620.60-419,163,963.60

Finding the Fourth Proportional to 528,003,080.40, 792,004,620.60 and 419,163,963.60

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Solution

The fourth proportional to 528,003,080.40, 792,004,620.60 and 419,163,963.60 is: 628,745,945.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,003,080.40 : 792,004,620.60 = 419,163,963.60 : x
  2. Step 2: Convert to fraction form
    528,003,080.40/792,004,620.60 = 419,163,963.60/x
  3. Step 3: Cross multiply
    528,003,080.40x = 792,004,620.60 × 419,163,963.60
  4. Step 4: Simplify right side
    528,003,080.40x = 331,979,795,960,210,240
  5. Step 5: Solve for x
    x = 331,979,795,960,210,240/528,003,080.40
  6. Step 6: Final answer
    x = 628,745,945.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.