Home / 382,839,172.12-528,315,370.14-208,998,916.12

Finding the Fourth Proportional to 382,839,172.12, 528,315,370.14 and 208,998,916.12

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Solution

The fourth proportional to 382,839,172.12, 528,315,370.14 and 208,998,916.12 is: 288,417,037.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,839,172.12 : 528,315,370.14 = 208,998,916.12 : x
  2. Step 2: Convert to fraction form
    382,839,172.12/528,315,370.14 = 208,998,916.12/x
  3. Step 3: Cross multiply
    382,839,172.12x = 528,315,370.14 × 208,998,916.12
  4. Step 4: Simplify right side
    382,839,172.12x = 110,417,339,728,796,608
  5. Step 5: Solve for x
    x = 110,417,339,728,796,608/382,839,172.12
  6. Step 6: Final answer
    x = 288,417,037.15

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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.