Home / 256,231,844.40-384,310,441.80-74,460,068.40

Finding the Fourth Proportional to 256,231,844.40, 384,310,441.80 and 74,460,068.40

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Solution

The fourth proportional to 256,231,844.40, 384,310,441.80 and 74,460,068.40 is: 111,679,256.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,231,844.40 : 384,310,441.80 = 74,460,068.40 : x
  2. Step 2: Convert to fraction form
    256,231,844.40/384,310,441.80 = 74,460,068.40/x
  3. Step 3: Cross multiply
    256,231,844.40x = 384,310,441.80 × 74,460,068.40
  4. Step 4: Simplify right side
    256,231,844.40x = 28,615,781,783,262,224
  5. Step 5: Solve for x
    x = 28,615,781,783,262,224/256,231,844.40
  6. Step 6: Final answer
    x = 111,679,256.15

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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.