Home / 256,231,736.40-384,310,279.80-74,459,960.40

Finding the Fourth Proportional to 256,231,736.40, 384,310,279.80 and 74,459,960.40

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Solution

The fourth proportional to 256,231,736.40, 384,310,279.80 and 74,459,960.40 is: 111,679,094.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,231,736.40 : 384,310,279.80 = 74,459,960.40 : x
  2. Step 2: Convert to fraction form
    256,231,736.40/384,310,279.80 = 74,459,960.40/x
  3. Step 3: Cross multiply
    256,231,736.40x = 384,310,279.80 × 74,459,960.40
  4. Step 4: Simplify right side
    256,231,736.40x = 28,615,728,215,220,924
  5. Step 5: Solve for x
    x = 28,615,728,215,220,924/256,231,736.40
  6. Step 6: Final answer
    x = 111,679,094.16

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1.5x scale

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.