Home / 389,066,943.88-536,925,110.61-212,850,851.37

Finding the Fourth Proportional to 389,066,943.88, 536,925,110.61 and 212,850,851.37

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Solution

The fourth proportional to 389,066,943.88, 536,925,110.61 and 212,850,851.37 is: 293,741,138.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,066,943.88 : 536,925,110.61 = 212,850,851.37 : x
  2. Step 2: Convert to fraction form
    389,066,943.88/536,925,110.61 = 212,850,851.37/x
  3. Step 3: Cross multiply
    389,066,943.88x = 536,925,110.61 × 212,850,851.37
  4. Step 4: Simplify right side
    389,066,943.88x = 114,284,966,915,269,920
  5. Step 5: Solve for x
    x = 114,284,966,915,269,920/389,066,943.88
  6. Step 6: Final answer
    x = 293,741,138.16

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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.