Home / 72,805,302,530.37-109,207,953,795.57-20,460,489,794.37

Finding the Fourth Proportional to 72,805,302,530.37, 109,207,953,795.57 and 20,460,489,794.37

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Solution

The fourth proportional to 72,805,302,530.37, 109,207,953,795.57 and 20,460,489,794.37 is: 30,690,734,691.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,805,302,530.37 : 109,207,953,795.57 = 20,460,489,794.37 : x
  2. Step 2: Convert to fraction form
    72,805,302,530.37/109,207,953,795.57 = 20,460,489,794.37/x
  3. Step 3: Cross multiply
    72,805,302,530.37x = 109,207,953,795.57 × 20,460,489,794.37
  4. Step 4: Simplify right side
    72,805,302,530.37x = 2,234,448,224,098,290,499,584
  5. Step 5: Solve for x
    x = 2,234,448,224,098,290,499,584/72,805,302,530.37
  6. Step 6: Final answer
    x = 30,690,734,691.56

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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.