Home / 128,114,433.60-192,171,650.40-47,318,683.20

Finding the Fourth Proportional to 128,114,433.60, 192,171,650.40 and 47,318,683.20

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Solution

The fourth proportional to 128,114,433.60, 192,171,650.40 and 47,318,683.20 is: 70,978,024.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,114,433.60 : 192,171,650.40 = 47,318,683.20 : x
  2. Step 2: Convert to fraction form
    128,114,433.60/192,171,650.40 = 47,318,683.20/x
  3. Step 3: Cross multiply
    128,114,433.60x = 192,171,650.40 × 47,318,683.20
  4. Step 4: Simplify right side
    128,114,433.60x = 9,093,309,445,298,754
  5. Step 5: Solve for x
    x = 9,093,309,445,298,754/128,114,433.60
  6. Step 6: Final answer
    x = 70,978,024.80

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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.