Home / 121,402,609.20-182,103,913.80-108,648,025.20

Finding the Fourth Proportional to 121,402,609.20, 182,103,913.80 and 108,648,025.20

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Solution

The fourth proportional to 121,402,609.20, 182,103,913.80 and 108,648,025.20 is: 162,972,037.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,402,609.20 : 182,103,913.80 = 108,648,025.20 : x
  2. Step 2: Convert to fraction form
    121,402,609.20/182,103,913.80 = 108,648,025.20/x
  3. Step 3: Cross multiply
    121,402,609.20x = 182,103,913.80 × 108,648,025.20
  4. Step 4: Simplify right side
    121,402,609.20x = 19,785,230,615,561,028
  5. Step 5: Solve for x
    x = 19,785,230,615,561,028/121,402,609.20
  6. Step 6: Final answer
    x = 162,972,037.80

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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.