Home / 205,565,394.78-308,224,915.47-65,445,296.22

Finding the Fourth Proportional to 205,565,394.78, 308,224,915.47 and 65,445,296.22

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Solution

The fourth proportional to 205,565,394.78, 308,224,915.47 and 65,445,296.22 is: 98,128,728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,565,394.78 : 308,224,915.47 = 65,445,296.22 : x
  2. Step 2: Convert to fraction form
    205,565,394.78/308,224,915.47 = 65,445,296.22/x
  3. Step 3: Cross multiply
    205,565,394.78x = 308,224,915.47 × 65,445,296.22
  4. Step 4: Simplify right side
    205,565,394.78x = 20,171,870,895,318,612
  5. Step 5: Solve for x
    x = 20,171,870,895,318,612/205,565,394.78
  6. Step 6: Final answer
    x = 98,128,728.90

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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.