Home / 820,865,972.84-1,132,796,134.92-444,523,210.16

Finding the Fourth Proportional to 820,865,972.84, 1,132,796,134.92 and 444,523,210.16

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Solution

The fourth proportional to 820,865,972.84, 1,132,796,134.92 and 444,523,210.16 is: 613,442,621.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,865,972.84 : 1,132,796,134.92 = 444,523,210.16 : x
  2. Step 2: Convert to fraction form
    820,865,972.84/1,132,796,134.92 = 444,523,210.16/x
  3. Step 3: Cross multiply
    820,865,972.84x = 1,132,796,134.92 × 444,523,210.16
  4. Step 4: Simplify right side
    820,865,972.84x = 503,554,174,351,478,912
  5. Step 5: Solve for x
    x = 503,554,174,351,478,912/820,865,972.84
  6. Step 6: Final answer
    x = 613,442,621.59

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1.5x scale

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.