Home / 132,867,830.40-199,301,745.60-121,782,364.80

Finding the Fourth Proportional to 132,867,830.40, 199,301,745.60 and 121,782,364.80

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Solution

The fourth proportional to 132,867,830.40, 199,301,745.60 and 121,782,364.80 is: 182,673,547.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,867,830.40 : 199,301,745.60 = 121,782,364.80 : x
  2. Step 2: Convert to fraction form
    132,867,830.40/199,301,745.60 = 121,782,364.80/x
  3. Step 3: Cross multiply
    132,867,830.40x = 199,301,745.60 × 121,782,364.80
  4. Step 4: Simplify right side
    132,867,830.40x = 24,271,437,887,935,992
  5. Step 5: Solve for x
    x = 24,271,437,887,935,992/132,867,830.40
  6. Step 6: Final answer
    x = 182,673,547.20

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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.