Home / 820,183,127.88-1,131,730,959.14-498,143,511.56

Finding the Fourth Proportional to 820,183,127.88, 1,131,730,959.14 and 498,143,511.56

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Solution

The fourth proportional to 820,183,127.88, 1,131,730,959.14 and 498,143,511.56 is: 687,364,095.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,183,127.88 : 1,131,730,959.14 = 498,143,511.56 : x
  2. Step 2: Convert to fraction form
    820,183,127.88/1,131,730,959.14 = 498,143,511.56/x
  3. Step 3: Cross multiply
    820,183,127.88x = 1,131,730,959.14 × 498,143,511.56
  4. Step 4: Simplify right side
    820,183,127.88x = 563,764,434,127,166,528
  5. Step 5: Solve for x
    x = 563,764,434,127,166,528/820,183,127.88
  6. Step 6: Final answer
    x = 687,364,095.85

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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.