Home / 285,659,384.40-428,489,076.60-149,386,539.60

Finding the Fourth Proportional to 285,659,384.40, 428,489,076.60 and 149,386,539.60

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Solution

The fourth proportional to 285,659,384.40, 428,489,076.60 and 149,386,539.60 is: 224,079,809.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,659,384.40 : 428,489,076.60 = 149,386,539.60 : x
  2. Step 2: Convert to fraction form
    285,659,384.40/428,489,076.60 = 149,386,539.60/x
  3. Step 3: Cross multiply
    285,659,384.40x = 428,489,076.60 × 149,386,539.60
  4. Step 4: Simplify right side
    285,659,384.40x = 64,010,500,409,673,336
  5. Step 5: Solve for x
    x = 64,010,500,409,673,336/285,659,384.40
  6. Step 6: Final answer
    x = 224,079,809.40

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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.