Home / 1,915,503,039.52-2,643,471,080.58-1,068,804,318.40

Finding the Fourth Proportional to 1,915,503,039.52, 2,643,471,080.58 and 1,068,804,318.40

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Solution

The fourth proportional to 1,915,503,039.52, 2,643,471,080.58 and 1,068,804,318.40 is: 1,474,992,859.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,503,039.52 : 2,643,471,080.58 = 1,068,804,318.40 : x
  2. Step 2: Convert to fraction form
    1,915,503,039.52/2,643,471,080.58 = 1,068,804,318.40/x
  3. Step 3: Cross multiply
    1,915,503,039.52x = 2,643,471,080.58 × 1,068,804,318.40
  4. Step 4: Simplify right side
    1,915,503,039.52x = 2,825,353,306,489,418,240
  5. Step 5: Solve for x
    x = 2,825,353,306,489,418,240/1,915,503,039.52
  6. Step 6: Final answer
    x = 1,474,992,859.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.