Home / 256,686,262.25-385,028,794.58-168,610,785.78

Finding the Fourth Proportional to 256,686,262.25, 385,028,794.58 and 168,610,785.78

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Solution

The fourth proportional to 256,686,262.25, 385,028,794.58 and 168,610,785.78 is: 252,915,785.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,686,262.25 : 385,028,794.58 = 168,610,785.78 : x
  2. Step 2: Convert to fraction form
    256,686,262.25/385,028,794.58 = 168,610,785.78/x
  3. Step 3: Cross multiply
    256,686,262.25x = 385,028,794.58 × 168,610,785.78
  4. Step 4: Simplify right side
    256,686,262.25x = 64,920,007,602,060,000
  5. Step 5: Solve for x
    x = 64,920,007,602,060,000/256,686,262.25
  6. Step 6: Final answer
    x = 252,915,785.34

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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.