Home / 205,666,309.74-308,522,874.15-74,570,322.72

Finding the Fourth Proportional to 205,666,309.74, 308,522,874.15 and 74,570,322.72

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Solution

The fourth proportional to 205,666,309.74, 308,522,874.15 and 74,570,322.72 is: 111,863,971.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,666,309.74 : 308,522,874.15 = 74,570,322.72 : x
  2. Step 2: Convert to fraction form
    205,666,309.74/308,522,874.15 = 74,570,322.72/x
  3. Step 3: Cross multiply
    205,666,309.74x = 308,522,874.15 × 74,570,322.72
  4. Step 4: Simplify right side
    205,666,309.74x = 23,006,650,291,867,444
  5. Step 5: Solve for x
    x = 23,006,650,291,867,444/205,666,309.74
  6. Step 6: Final answer
    x = 111,863,971.89

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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.