Home / 212,787,712.60-318,933,563.10-97,783,880.20

Finding the Fourth Proportional to 212,787,712.60, 318,933,563.10 and 97,783,880.20

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Solution

The fourth proportional to 212,787,712.60, 318,933,563.10 and 97,783,880.20 is: 146,561,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,787,712.60 : 318,933,563.10 = 97,783,880.20 : x
  2. Step 2: Convert to fraction form
    212,787,712.60/318,933,563.10 = 97,783,880.20/x
  3. Step 3: Cross multiply
    212,787,712.60x = 318,933,563.10 × 97,783,880.20
  4. Step 4: Simplify right side
    212,787,712.60x = 31,186,561,325,929,544
  5. Step 5: Solve for x
    x = 31,186,561,325,929,544/212,787,712.60
  6. Step 6: Final answer
    x = 146,561,852.40

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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.