Home / 820,183,110.26-1,131,730,934.82-498,143,493.90

Finding the Fourth Proportional to 820,183,110.26, 1,131,730,934.82 and 498,143,493.90

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Solution

The fourth proportional to 820,183,110.26, 1,131,730,934.82 and 498,143,493.90 is: 687,364,071.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,183,110.26 : 1,131,730,934.82 = 498,143,493.90 : x
  2. Step 2: Convert to fraction form
    820,183,110.26/1,131,730,934.82 = 498,143,493.90/x
  3. Step 3: Cross multiply
    820,183,110.26x = 1,131,730,934.82 × 498,143,493.90
  4. Step 4: Simplify right side
    820,183,110.26x = 563,764,402,024,104,768
  5. Step 5: Solve for x
    x = 563,764,402,024,104,768/820,183,110.26
  6. Step 6: Final answer
    x = 687,364,071.48

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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.