Home / 72,805,302,599.46-109,207,953,899.25-20,460,489,863.46

Finding the Fourth Proportional to 72,805,302,599.46, 109,207,953,899.25 and 20,460,489,863.46

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Solution

The fourth proportional to 72,805,302,599.46, 109,207,953,899.25 and 20,460,489,863.46 is: 30,690,734,795.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,805,302,599.46 : 109,207,953,899.25 = 20,460,489,863.46 : x
  2. Step 2: Convert to fraction form
    72,805,302,599.46/109,207,953,899.25 = 20,460,489,863.46/x
  3. Step 3: Cross multiply
    72,805,302,599.46x = 109,207,953,899.25 × 20,460,489,863.46
  4. Step 4: Simplify right side
    72,805,302,599.46x = 2,234,448,233,764,811,440,128
  5. Step 5: Solve for x
    x = 2,234,448,233,764,811,440,128/72,805,302,599.46
  6. Step 6: Final answer
    x = 30,690,734,795.21

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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.