Home / 828,885,817.40-1,242,992,802.90-283,346,540.60

Finding the Fourth Proportional to 828,885,817.40, 1,242,992,802.90 and 283,346,540.60

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Solution

The fourth proportional to 828,885,817.40, 1,242,992,802.90 and 283,346,540.60 is: 424,904,978.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,885,817.40 : 1,242,992,802.90 = 283,346,540.60 : x
  2. Step 2: Convert to fraction form
    828,885,817.40/1,242,992,802.90 = 283,346,540.60/x
  3. Step 3: Cross multiply
    828,885,817.40x = 1,242,992,802.90 × 283,346,540.60
  4. Step 4: Simplify right side
    828,885,817.40x = 352,197,710,692,412,736
  5. Step 5: Solve for x
    x = 352,197,710,692,412,736/828,885,817.40
  6. Step 6: Final answer
    x = 424,904,978.83

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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.