Home / 658,399,544.75-987,549,652.14-209,684,799.54

Finding the Fourth Proportional to 658,399,544.75, 987,549,652.14 and 209,684,799.54

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Solution

The fourth proportional to 658,399,544.75, 987,549,652.14 and 209,684,799.54 is: 314,511,382.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,399,544.75 : 987,549,652.14 = 209,684,799.54 : x
  2. Step 2: Convert to fraction form
    658,399,544.75/987,549,652.14 = 209,684,799.54/x
  3. Step 3: Cross multiply
    658,399,544.75x = 987,549,652.14 × 209,684,799.54
  4. Step 4: Simplify right side
    658,399,544.75x = 207,074,150,844,772,608
  5. Step 5: Solve for x
    x = 207,074,150,844,772,608/658,399,544.75
  6. Step 6: Final answer
    x = 314,511,382.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.