Home / 1,262,210,576.60-1,892,420,069.70-485,556,138.20

Finding the Fourth Proportional to 1,262,210,576.60, 1,892,420,069.70 and 485,556,138.20

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Solution

The fourth proportional to 1,262,210,576.60, 1,892,420,069.70 and 485,556,138.20 is: 727,989,606.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,210,576.60 : 1,892,420,069.70 = 485,556,138.20 : x
  2. Step 2: Convert to fraction form
    1,262,210,576.60/1,892,420,069.70 = 485,556,138.20/x
  3. Step 3: Cross multiply
    1,262,210,576.60x = 1,892,420,069.70 × 485,556,138.20
  4. Step 4: Simplify right side
    1,262,210,576.60x = 918,876,180,895,706,880
  5. Step 5: Solve for x
    x = 918,876,180,895,706,880/1,262,210,576.60
  6. Step 6: Final answer
    x = 727,989,606.43

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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.