Home / 72,580,870.20-108,745,334.10-47,008,716.60

Finding the Fourth Proportional to 72,580,870.20, 108,745,334.10 and 47,008,716.60

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Solution

The fourth proportional to 72,580,870.20, 108,745,334.10 and 47,008,716.60 is: 70,431,486.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,580,870.20 : 108,745,334.10 = 47,008,716.60 : x
  2. Step 2: Convert to fraction form
    72,580,870.20/108,745,334.10 = 47,008,716.60/x
  3. Step 3: Cross multiply
    72,580,870.20x = 108,745,334.10 × 47,008,716.60
  4. Step 4: Simplify right side
    72,580,870.20x = 5,111,978,592,279,216
  5. Step 5: Solve for x
    x = 5,111,978,592,279,216/72,580,870.20
  6. Step 6: Final answer
    x = 70,431,486.67

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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.