Home / 820,142,272.48-1,131,799,335.60-443,798,863.60

Finding the Fourth Proportional to 820,142,272.48, 1,131,799,335.60 and 443,798,863.60

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Solution

The fourth proportional to 820,142,272.48, 1,131,799,335.60 and 443,798,863.60 is: 612,444,054.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,142,272.48 : 1,131,799,335.60 = 443,798,863.60 : x
  2. Step 2: Convert to fraction form
    820,142,272.48/1,131,799,335.60 = 443,798,863.60/x
  3. Step 3: Cross multiply
    820,142,272.48x = 1,131,799,335.60 × 443,798,863.60
  4. Step 4: Simplify right side
    820,142,272.48x = 502,291,258,962,515,008
  5. Step 5: Solve for x
    x = 502,291,258,962,515,008/820,142,272.48
  6. Step 6: Final answer
    x = 612,444,054.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.