Home / 285,380,221.15-393,829,865-161,646,504.67

Finding the Fourth Proportional to 285,380,221.15, 393,829,865 and 161,646,504.67

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Solution

The fourth proportional to 285,380,221.15, 393,829,865 and 161,646,504.67 is: 223,075,099.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,380,221.15 : 393,829,865 = 161,646,504.67 : x
  2. Step 2: Convert to fraction form
    285,380,221.15/393,829,865 = 161,646,504.67/x
  3. Step 3: Cross multiply
    285,380,221.15x = 393,829,865 × 161,646,504.67
  4. Step 4: Simplify right side
    285,380,221.15x = 63,661,221,111,907,968
  5. Step 5: Solve for x
    x = 63,661,221,111,907,968/285,380,221.15
  6. Step 6: Final answer
    x = 223,075,099.09

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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.