Home / 653,186,912.80-979,780,369.20-193,084,103.20

Finding the Fourth Proportional to 653,186,912.80, 979,780,369.20 and 193,084,103.20

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Solution

The fourth proportional to 653,186,912.80, 979,780,369.20 and 193,084,103.20 is: 289,626,154.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,186,912.80 : 979,780,369.20 = 193,084,103.20 : x
  2. Step 2: Convert to fraction form
    653,186,912.80/979,780,369.20 = 193,084,103.20/x
  3. Step 3: Cross multiply
    653,186,912.80x = 979,780,369.20 × 193,084,103.20
  4. Step 4: Simplify right side
    653,186,912.80x = 189,180,013,919,946,912
  5. Step 5: Solve for x
    x = 189,180,013,919,946,912/653,186,912.80
  6. Step 6: Final answer
    x = 289,626,154.80

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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.