Home / 21,210,263,972.08-29,271,470,767.92-11,694,786,295.04

Finding the Fourth Proportional to 21,210,263,972.08, 29,271,470,767.92 and 11,694,786,295.04

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Solution

The fourth proportional to 21,210,263,972.08, 29,271,470,767.92 and 11,694,786,295.04 is: 16,139,525,449.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,210,263,972.08 : 29,271,470,767.92 = 11,694,786,295.04 : x
  2. Step 2: Convert to fraction form
    21,210,263,972.08/29,271,470,767.92 = 11,694,786,295.04/x
  3. Step 3: Cross multiply
    21,210,263,972.08x = 29,271,470,767.92 × 11,694,786,295.04
  4. Step 4: Simplify right side
    21,210,263,972.08x = 342,323,595,172,334,796,800
  5. Step 5: Solve for x
    x = 342,323,595,172,334,796,800/21,210,263,972.08
  6. Step 6: Final answer
    x = 16,139,525,449.70

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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.