Home / 39,940,601,155.10-55,118,059,309.71-21,629,800,969.77

Finding the Fourth Proportional to 39,940,601,155.10, 55,118,059,309.71 and 21,629,800,969.77

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Solution

The fourth proportional to 39,940,601,155.10, 55,118,059,309.71 and 21,629,800,969.77 is: 29,849,141,430.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,940,601,155.10 : 55,118,059,309.71 = 21,629,800,969.77 : x
  2. Step 2: Convert to fraction form
    39,940,601,155.10/55,118,059,309.71 = 21,629,800,969.77/x
  3. Step 3: Cross multiply
    39,940,601,155.10x = 55,118,059,309.71 × 21,629,800,969.77
  4. Step 4: Simplify right side
    39,940,601,155.10x = 1,192,192,652,709,005,623,296
  5. Step 5: Solve for x
    x = 1,192,192,652,709,005,623,296/39,940,601,155.10
  6. Step 6: Final answer
    x = 29,849,141,430.79

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1.5x scale

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.