Home / 136,286,629.60-204,429,944.40-81,867,071.20

Finding the Fourth Proportional to 136,286,629.60, 204,429,944.40 and 81,867,071.20

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Solution

The fourth proportional to 136,286,629.60, 204,429,944.40 and 81,867,071.20 is: 122,800,606.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,286,629.60 : 204,429,944.40 = 81,867,071.20 : x
  2. Step 2: Convert to fraction form
    136,286,629.60/204,429,944.40 = 81,867,071.20/x
  3. Step 3: Cross multiply
    136,286,629.60x = 204,429,944.40 × 81,867,071.20
  4. Step 4: Simplify right side
    136,286,629.60x = 16,736,080,813,606,842
  5. Step 5: Solve for x
    x = 16,736,080,813,606,842/136,286,629.60
  6. Step 6: Final answer
    x = 122,800,606.80

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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.