Home / 212,176,753.60-318,265,130.40-210,665,099.20

Finding the Fourth Proportional to 212,176,753.60, 318,265,130.40 and 210,665,099.20

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Solution

The fourth proportional to 212,176,753.60, 318,265,130.40 and 210,665,099.20 is: 315,997,648.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,176,753.60 : 318,265,130.40 = 210,665,099.20 : x
  2. Step 2: Convert to fraction form
    212,176,753.60/318,265,130.40 = 210,665,099.20/x
  3. Step 3: Cross multiply
    212,176,753.60x = 318,265,130.40 × 210,665,099.20
  4. Step 4: Simplify right side
    212,176,753.60x = 67,047,355,267,616,928
  5. Step 5: Solve for x
    x = 67,047,355,267,616,928/212,176,753.60
  6. Step 6: Final answer
    x = 315,997,648.80

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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.