Home / 689,939,311.60-1,035,192,402.60-253,449,103.60

Finding the Fourth Proportional to 689,939,311.60, 1,035,192,402.60 and 253,449,103.60

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Solution

The fourth proportional to 689,939,311.60, 1,035,192,402.60 and 253,449,103.60 is: 380,277,775.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,939,311.60 : 1,035,192,402.60 = 253,449,103.60 : x
  2. Step 2: Convert to fraction form
    689,939,311.60/1,035,192,402.60 = 253,449,103.60/x
  3. Step 3: Cross multiply
    689,939,311.60x = 1,035,192,402.60 × 253,449,103.60
  4. Step 4: Simplify right side
    689,939,311.60x = 262,368,586,492,500,320
  5. Step 5: Solve for x
    x = 262,368,586,492,500,320/689,939,311.60
  6. Step 6: Final answer
    x = 380,277,775.28

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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.