Home / 2,129,980,687.20-3,193,459,376.40-819,376,322.40

Finding the Fourth Proportional to 2,129,980,687.20, 3,193,459,376.40 and 819,376,322.40

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Solution

The fourth proportional to 2,129,980,687.20, 3,193,459,376.40 and 819,376,322.40 is: 1,228,482,969.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,980,687.20 : 3,193,459,376.40 = 819,376,322.40 : x
  2. Step 2: Convert to fraction form
    2,129,980,687.20/3,193,459,376.40 = 819,376,322.40/x
  3. Step 3: Cross multiply
    2,129,980,687.20x = 3,193,459,376.40 × 819,376,322.40
  4. Step 4: Simplify right side
    2,129,980,687.20x = 2,616,644,999,568,429,568
  5. Step 5: Solve for x
    x = 2,616,644,999,568,429,568/2,129,980,687.20
  6. Step 6: Final answer
    x = 1,228,482,969.49

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1.5x scale

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.