Home / 109,119,820.80-163,742,716.80-40,969,401.60

Finding the Fourth Proportional to 109,119,820.80, 163,742,716.80 and 40,969,401.60

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Solution

The fourth proportional to 109,119,820.80, 163,742,716.80 and 40,969,401.60 is: 61,477,750.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,119,820.80 : 163,742,716.80 = 40,969,401.60 : x
  2. Step 2: Convert to fraction form
    109,119,820.80/163,742,716.80 = 40,969,401.60/x
  3. Step 3: Cross multiply
    109,119,820.80x = 163,742,716.80 × 40,969,401.60
  4. Step 4: Simplify right side
    109,119,820.80x = 6,708,441,123,654,268
  5. Step 5: Solve for x
    x = 6,708,441,123,654,268/109,119,820.80
  6. Step 6: Final answer
    x = 61,477,750.55

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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.