Home / 1,309,713,961.25-1,807,396,072.04-714,998,445.56

Finding the Fourth Proportional to 1,309,713,961.25, 1,807,396,072.04 and 714,998,445.56

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Solution

The fourth proportional to 1,309,713,961.25, 1,807,396,072.04 and 714,998,445.56 is: 986,692,835.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,713,961.25 : 1,807,396,072.04 = 714,998,445.56 : x
  2. Step 2: Convert to fraction form
    1,309,713,961.25/1,807,396,072.04 = 714,998,445.56/x
  3. Step 3: Cross multiply
    1,309,713,961.25x = 1,807,396,072.04 × 714,998,445.56
  4. Step 4: Simplify right side
    1,309,713,961.25x = 1,292,285,382,026,515,712
  5. Step 5: Solve for x
    x = 1,292,285,382,026,515,712/1,309,713,961.25
  6. Step 6: Final answer
    x = 986,692,835.43

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Double scale
Find fourth proportional to 1,309,713,962.25, 1,807,396,073.42 and 714,998,446.56
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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.