Home / 820,399,914.87-1,132,151,937.81-449,121,946.23

Finding the Fourth Proportional to 820,399,914.87, 1,132,151,937.81 and 449,121,946.23

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Solution

The fourth proportional to 820,399,914.87, 1,132,151,937.81 and 449,121,946.23 is: 619,788,316.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,399,914.87 : 1,132,151,937.81 = 449,121,946.23 : x
  2. Step 2: Convert to fraction form
    820,399,914.87/1,132,151,937.81 = 449,121,946.23/x
  3. Step 3: Cross multiply
    820,399,914.87x = 1,132,151,937.81 × 449,121,946.23
  4. Step 4: Simplify right side
    820,399,914.87x = 508,474,281,737,293,120
  5. Step 5: Solve for x
    x = 508,474,281,737,293,120/820,399,914.87
  6. Step 6: Final answer
    x = 619,788,316.07

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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.