Home / 20,718,182,806.20-31,077,274,209.30-7,637,081,455.80

Finding the Fourth Proportional to 20,718,182,806.20, 31,077,274,209.30 and 7,637,081,455.80

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Solution

The fourth proportional to 20,718,182,806.20, 31,077,274,209.30 and 7,637,081,455.80 is: 11,455,622,183.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718,182,806.20 : 31,077,274,209.30 = 7,637,081,455.80 : x
  2. Step 2: Convert to fraction form
    20,718,182,806.20/31,077,274,209.30 = 7,637,081,455.80/x
  3. Step 3: Cross multiply
    20,718,182,806.20x = 31,077,274,209.30 × 7,637,081,455.80
  4. Step 4: Simplify right side
    20,718,182,806.20x = 237,339,674,560,656,637,952
  5. Step 5: Solve for x
    x = 237,339,674,560,656,637,952/20,718,182,806.20
  6. Step 6: Final answer
    x = 11,455,622,183.70

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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.