Home / 835,091,393.31-1,253,154,365.51-485,501,993.90

Finding the Fourth Proportional to 835,091,393.31, 1,253,154,365.51 and 485,501,993.90

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Solution

The fourth proportional to 835,091,393.31, 1,253,154,365.51 and 485,501,993.90 is: 728,553,722.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,091,393.31 : 1,253,154,365.51 = 485,501,993.90 : x
  2. Step 2: Convert to fraction form
    835,091,393.31/1,253,154,365.51 = 485,501,993.90/x
  3. Step 3: Cross multiply
    835,091,393.31x = 1,253,154,365.51 × 485,501,993.90
  4. Step 4: Simplify right side
    835,091,393.31x = 608,408,943,115,600,512
  5. Step 5: Solve for x
    x = 608,408,943,115,600,512/835,091,393.31
  6. Step 6: Final answer
    x = 728,553,722.37

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1.5x scale

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.