Home / 2,128,559,929.70-3,192,839,894.55-1,257,846,995.30

Finding the Fourth Proportional to 2,128,559,929.70, 3,192,839,894.55 and 1,257,846,995.30

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Solution

The fourth proportional to 2,128,559,929.70, 3,192,839,894.55 and 1,257,846,995.30 is: 1,886,770,492.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,559,929.70 : 3,192,839,894.55 = 1,257,846,995.30 : x
  2. Step 2: Convert to fraction form
    2,128,559,929.70/3,192,839,894.55 = 1,257,846,995.30/x
  3. Step 3: Cross multiply
    2,128,559,929.70x = 3,192,839,894.55 × 1,257,846,995.30
  4. Step 4: Simplify right side
    2,128,559,929.70x = 4,016,104,067,833,686,528
  5. Step 5: Solve for x
    x = 4,016,104,067,833,686,528/2,128,559,929.70
  6. Step 6: Final answer
    x = 1,886,770,492.95

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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.