Home / 807,516,010.20-1,211,274,015.30-262,312,656.60

Finding the Fourth Proportional to 807,516,010.20, 1,211,274,015.30 and 262,312,656.60

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Solution

The fourth proportional to 807,516,010.20, 1,211,274,015.30 and 262,312,656.60 is: 393,468,984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,516,010.20 : 1,211,274,015.30 = 262,312,656.60 : x
  2. Step 2: Convert to fraction form
    807,516,010.20/1,211,274,015.30 = 262,312,656.60/x
  3. Step 3: Cross multiply
    807,516,010.20x = 1,211,274,015.30 × 262,312,656.60
  4. Step 4: Simplify right side
    807,516,010.20x = 317,732,504,823,892,032
  5. Step 5: Solve for x
    x = 317,732,504,823,892,032/807,516,010.20
  6. Step 6: Final answer
    x = 393,468,984.90

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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.