Home / 989,754,993.58-1,365,862,786.35-543,747,249.31

Finding the Fourth Proportional to 989,754,993.58, 1,365,862,786.35 and 543,747,249.31

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Solution

The fourth proportional to 989,754,993.58, 1,365,862,786.35 and 543,747,249.31 is: 750,371,695.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,754,993.58 : 1,365,862,786.35 = 543,747,249.31 : x
  2. Step 2: Convert to fraction form
    989,754,993.58/1,365,862,786.35 = 543,747,249.31/x
  3. Step 3: Cross multiply
    989,754,993.58x = 1,365,862,786.35 × 543,747,249.31
  4. Step 4: Simplify right side
    989,754,993.58x = 742,684,133,012,704,640
  5. Step 5: Solve for x
    x = 742,684,133,012,704,640/989,754,993.58
  6. Step 6: Final answer
    x = 750,371,695.85

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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.