Home / 820,865,969.08-1,132,796,129.75-444,523,206.40

Finding the Fourth Proportional to 820,865,969.08, 1,132,796,129.75 and 444,523,206.40

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Solution

The fourth proportional to 820,865,969.08, 1,132,796,129.75 and 444,523,206.40 is: 613,442,616.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,865,969.08 : 1,132,796,129.75 = 444,523,206.40 : x
  2. Step 2: Convert to fraction form
    820,865,969.08/1,132,796,129.75 = 444,523,206.40/x
  3. Step 3: Cross multiply
    820,865,969.08x = 1,132,796,129.75 × 444,523,206.40
  4. Step 4: Simplify right side
    820,865,969.08x = 503,554,167,791,757,760
  5. Step 5: Solve for x
    x = 503,554,167,791,757,760/820,865,969.08
  6. Step 6: Final answer
    x = 613,442,616.41

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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.