Home / 647,172,830.40-970,759,245.60-238,522,257.60

Finding the Fourth Proportional to 647,172,830.40, 970,759,245.60 and 238,522,257.60

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Solution

The fourth proportional to 647,172,830.40, 970,759,245.60 and 238,522,257.60 is: 357,783,386.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,172,830.40 : 970,759,245.60 = 238,522,257.60 : x
  2. Step 2: Convert to fraction form
    647,172,830.40/970,759,245.60 = 238,522,257.60/x
  3. Step 3: Cross multiply
    647,172,830.40x = 970,759,245.60 × 238,522,257.60
  4. Step 4: Simplify right side
    647,172,830.40x = 231,547,686,846,584,864
  5. Step 5: Solve for x
    x = 231,547,686,846,584,864/647,172,830.40
  6. Step 6: Final answer
    x = 357,783,386.40

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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.