Home / 256,231,710.90-384,310,241.55-74,459,934.90

Finding the Fourth Proportional to 256,231,710.90, 384,310,241.55 and 74,459,934.90

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Solution

The fourth proportional to 256,231,710.90, 384,310,241.55 and 74,459,934.90 is: 111,679,055.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,231,710.90 : 384,310,241.55 = 74,459,934.90 : x
  2. Step 2: Convert to fraction form
    256,231,710.90/384,310,241.55 = 74,459,934.90/x
  3. Step 3: Cross multiply
    256,231,710.90x = 384,310,241.55 × 74,459,934.90
  4. Step 4: Simplify right side
    256,231,710.90x = 28,615,715,567,216,280
  5. Step 5: Solve for x
    x = 28,615,715,567,216,280/256,231,710.90
  6. Step 6: Final answer
    x = 111,679,055.91

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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.