Home / 65,089,740-89,823,841.20-36,121,025.76

Finding the Fourth Proportional to 65,089,740, 89,823,841.20 and 36,121,025.76

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Solution

The fourth proportional to 65,089,740, 89,823,841.20 and 36,121,025.76 is: 49,847,015.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,089,740 : 89,823,841.20 = 36,121,025.76 : x
  2. Step 2: Convert to fraction form
    65,089,740/89,823,841.20 = 36,121,025.76/x
  3. Step 3: Cross multiply
    65,089,740x = 89,823,841.20 × 36,121,025.76
  4. Step 4: Simplify right side
    65,089,740x = 3,244,529,281,847,349
  5. Step 5: Solve for x
    x = 3,244,529,281,847,349/65,089,740
  6. Step 6: Final answer
    x = 49,847,015.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.