Home / 682,530,358.77-942,542,405.45-645,346,540.08

Finding the Fourth Proportional to 682,530,358.77, 942,542,405.45 and 645,346,540.08

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Solution

The fourth proportional to 682,530,358.77, 942,542,405.45 and 645,346,540.08 is: 891,193,296.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,530,358.77 : 942,542,405.45 = 645,346,540.08 : x
  2. Step 2: Convert to fraction form
    682,530,358.77/942,542,405.45 = 645,346,540.08/x
  3. Step 3: Cross multiply
    682,530,358.77x = 942,542,405.45 × 645,346,540.08
  4. Step 4: Simplify right side
    682,530,358.77x = 608,266,480,232,611,328
  5. Step 5: Solve for x
    x = 608,266,480,232,611,328/682,530,358.77
  6. Step 6: Final answer
    x = 891,193,296.26

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1.5x scale

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.