Home / 903,620,739.75-1,247,491,422.03-632,458,559.04

Finding the Fourth Proportional to 903,620,739.75, 1,247,491,422.03 and 632,458,559.04

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Solution

The fourth proportional to 903,620,739.75, 1,247,491,422.03 and 632,458,559.04 is: 873,139,130.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,620,739.75 : 1,247,491,422.03 = 632,458,559.04 : x
  2. Step 2: Convert to fraction form
    903,620,739.75/1,247,491,422.03 = 632,458,559.04/x
  3. Step 3: Cross multiply
    903,620,739.75x = 1,247,491,422.03 × 632,458,559.04
  4. Step 4: Simplify right side
    903,620,739.75x = 788,986,627,191,854,208
  5. Step 5: Solve for x
    x = 788,986,627,191,854,208/903,620,739.75
  6. Step 6: Final answer
    x = 873,139,130.70

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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.