Home / 39,948,790,664.36-55,128,892,228.01-21,637,392,780.42

Finding the Fourth Proportional to 39,948,790,664.36, 55,128,892,228.01 and 21,637,392,780.42

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Solution

The fourth proportional to 39,948,790,664.36, 55,128,892,228.01 and 21,637,392,780.42 is: 29,859,364,322.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,948,790,664.36 : 55,128,892,228.01 = 21,637,392,780.42 : x
  2. Step 2: Convert to fraction form
    39,948,790,664.36/55,128,892,228.01 = 21,637,392,780.42/x
  3. Step 3: Cross multiply
    39,948,790,664.36x = 55,128,892,228.01 × 21,637,392,780.42
  4. Step 4: Simplify right side
    39,948,790,664.36x = 1,192,845,494,686,787,567,616
  5. Step 5: Solve for x
    x = 1,192,845,494,686,787,567,616/39,948,790,664.36
  6. Step 6: Final answer
    x = 29,859,364,322.41

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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.