Home / 1,129,424,379.12-1,558,643,449.32-627,654,314.16

Finding the Fourth Proportional to 1,129,424,379.12, 1,558,643,449.32 and 627,654,314.16

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Solution

The fourth proportional to 1,129,424,379.12, 1,558,643,449.32 and 627,654,314.16 is: 866,183,963.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,424,379.12 : 1,558,643,449.32 = 627,654,314.16 : x
  2. Step 2: Convert to fraction form
    1,129,424,379.12/1,558,643,449.32 = 627,654,314.16/x
  3. Step 3: Cross multiply
    1,129,424,379.12x = 1,558,643,449.32 × 627,654,314.16
  4. Step 4: Simplify right side
    1,129,424,379.12x = 978,289,285,202,921,216
  5. Step 5: Solve for x
    x = 978,289,285,202,921,216/1,129,424,379.12
  6. Step 6: Final answer
    x = 866,183,963.52

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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.