Home / 307,486,181.44-423,946,020.82-256,638,017.12

Finding the Fourth Proportional to 307,486,181.44, 423,946,020.82 and 256,638,017.12

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Solution

The fourth proportional to 307,486,181.44, 423,946,020.82 and 256,638,017.12 is: 353,839,205.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,486,181.44 : 423,946,020.82 = 256,638,017.12 : x
  2. Step 2: Convert to fraction form
    307,486,181.44/423,946,020.82 = 256,638,017.12/x
  3. Step 3: Cross multiply
    307,486,181.44x = 423,946,020.82 × 256,638,017.12
  4. Step 4: Simplify right side
    307,486,181.44x = 108,800,666,149,159,040
  5. Step 5: Solve for x
    x = 108,800,666,149,159,040/307,486,181.44
  6. Step 6: Final answer
    x = 353,839,205.52

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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.