Home / 73,512,020.40-110,268,030.60-72,378,279.60

Finding the Fourth Proportional to 73,512,020.40, 110,268,030.60 and 72,378,279.60

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Solution

The fourth proportional to 73,512,020.40, 110,268,030.60 and 72,378,279.60 is: 108,567,419.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,512,020.40 : 110,268,030.60 = 72,378,279.60 : x
  2. Step 2: Convert to fraction form
    73,512,020.40/110,268,030.60 = 72,378,279.60/x
  3. Step 3: Cross multiply
    73,512,020.40x = 110,268,030.60 × 72,378,279.60
  4. Step 4: Simplify right side
    73,512,020.40x = 7,981,010,349,708,155
  5. Step 5: Solve for x
    x = 7,981,010,349,708,155/73,512,020.40
  6. Step 6: Final answer
    x = 108,567,419.40

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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.