Home / 1,780,138,166.40-2,668,364,920.80-798,035,198.40

Finding the Fourth Proportional to 1,780,138,166.40, 2,668,364,920.80 and 798,035,198.40

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Solution

The fourth proportional to 1,780,138,166.40, 2,668,364,920.80 and 798,035,198.40 is: 1,196,226,882.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,138,166.40 : 2,668,364,920.80 = 798,035,198.40 : x
  2. Step 2: Convert to fraction form
    1,780,138,166.40/2,668,364,920.80 = 798,035,198.40/x
  3. Step 3: Cross multiply
    1,780,138,166.40x = 2,668,364,920.80 × 798,035,198.40
  4. Step 4: Simplify right side
    1,780,138,166.40x = 2,129,449,128,974,228,480
  5. Step 5: Solve for x
    x = 2,129,449,128,974,228,480/1,780,138,166.40
  6. Step 6: Final answer
    x = 1,196,226,882.37

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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.