Home / 72,805,302,525.84-109,207,953,788.82-20,460,489,789.84

Finding the Fourth Proportional to 72,805,302,525.84, 109,207,953,788.82 and 20,460,489,789.84

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Solution

The fourth proportional to 72,805,302,525.84, 109,207,953,788.82 and 20,460,489,789.84 is: 30,690,734,684.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,805,302,525.84 : 109,207,953,788.82 = 20,460,489,789.84 : x
  2. Step 2: Convert to fraction form
    72,805,302,525.84/109,207,953,788.82 = 20,460,489,789.84/x
  3. Step 3: Cross multiply
    72,805,302,525.84x = 109,207,953,788.82 × 20,460,489,789.84
  4. Step 4: Simplify right side
    72,805,302,525.84x = 2,234,448,223,465,470,427,136
  5. Step 5: Solve for x
    x = 2,234,448,223,465,470,427,136/72,805,302,525.84
  6. Step 6: Final answer
    x = 30,690,734,684.78

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1.5x scale

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.