Home / 256,231,705.40-384,310,233.30-74,459,929.40

Finding the Fourth Proportional to 256,231,705.40, 384,310,233.30 and 74,459,929.40

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Solution

The fourth proportional to 256,231,705.40, 384,310,233.30 and 74,459,929.40 is: 111,679,047.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,231,705.40 : 384,310,233.30 = 74,459,929.40 : x
  2. Step 2: Convert to fraction form
    256,231,705.40/384,310,233.30 = 74,459,929.40/x
  3. Step 3: Cross multiply
    256,231,705.40x = 384,310,233.30 × 74,459,929.40
  4. Step 4: Simplify right side
    256,231,705.40x = 28,615,712,839,215,532
  5. Step 5: Solve for x
    x = 28,615,712,839,215,532/256,231,705.40
  6. Step 6: Final answer
    x = 111,679,047.66

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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.