Home / 1,819,181,743.20-2,728,772,876.70-438,996,256.20

Finding the Fourth Proportional to 1,819,181,743.20, 2,728,772,876.70 and 438,996,256.20

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Solution

The fourth proportional to 1,819,181,743.20, 2,728,772,876.70 and 438,996,256.20 is: 658,494,447.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,819,181,743.20 : 2,728,772,876.70 = 438,996,256.20 : x
  2. Step 2: Convert to fraction form
    1,819,181,743.20/2,728,772,876.70 = 438,996,256.20/x
  3. Step 3: Cross multiply
    1,819,181,743.20x = 2,728,772,876.70 × 438,996,256.20
  4. Step 4: Simplify right side
    1,819,181,743.20x = 1,197,921,076,891,404,032
  5. Step 5: Solve for x
    x = 1,197,921,076,891,404,032/1,819,181,743.20
  6. Step 6: Final answer
    x = 658,494,447.50

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Double scale
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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.