Home / 256,122,552.80-384,183,829.20-74,388,101.60

Finding the Fourth Proportional to 256,122,552.80, 384,183,829.20 and 74,388,101.60

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Solution

The fourth proportional to 256,122,552.80, 384,183,829.20 and 74,388,101.60 is: 111,582,152.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,122,552.80 : 384,183,829.20 = 74,388,101.60 : x
  2. Step 2: Convert to fraction form
    256,122,552.80/384,183,829.20 = 74,388,101.60/x
  3. Step 3: Cross multiply
    256,122,552.80x = 384,183,829.20 × 74,388,101.60
  4. Step 4: Simplify right side
    256,122,552.80x = 28,578,705,719,606,644
  5. Step 5: Solve for x
    x = 28,578,705,719,606,644/256,122,552.80
  6. Step 6: Final answer
    x = 111,582,152.40

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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.