Home / 1,286,925,683.10-1,930,892,409.45-469,120,652.70

Finding the Fourth Proportional to 1,286,925,683.10, 1,930,892,409.45 and 469,120,652.70

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Solution

The fourth proportional to 1,286,925,683.10, 1,930,892,409.45 and 469,120,652.70 is: 703,864,659.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,925,683.10 : 1,930,892,409.45 = 469,120,652.70 : x
  2. Step 2: Convert to fraction form
    1,286,925,683.10/1,930,892,409.45 = 469,120,652.70/x
  3. Step 3: Cross multiply
    1,286,925,683.10x = 1,930,892,409.45 × 469,120,652.70
  4. Step 4: Simplify right side
    1,286,925,683.10x = 905,821,507,414,659,584
  5. Step 5: Solve for x
    x = 905,821,507,414,659,584/1,286,925,683.10
  6. Step 6: Final answer
    x = 703,864,659.25

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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.