Home / 806,954,825.60-1,210,432,238.40-531,455,811.20

Finding the Fourth Proportional to 806,954,825.60, 1,210,432,238.40 and 531,455,811.20

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Solution

The fourth proportional to 806,954,825.60, 1,210,432,238.40 and 531,455,811.20 is: 797,183,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,954,825.60 : 1,210,432,238.40 = 531,455,811.20 : x
  2. Step 2: Convert to fraction form
    806,954,825.60/1,210,432,238.40 = 531,455,811.20/x
  3. Step 3: Cross multiply
    806,954,825.60x = 1,210,432,238.40 × 531,455,811.20
  4. Step 4: Simplify right side
    806,954,825.60x = 643,291,247,161,503,872
  5. Step 5: Solve for x
    x = 643,291,247,161,503,872/806,954,825.60
  6. Step 6: Final answer
    x = 797,183,716.80

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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.