Home / 319,116,989.43-477,693,716.11-208,213,858.10

Finding the Fourth Proportional to 319,116,989.43, 477,693,716.11 and 208,213,858.10

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Solution

The fourth proportional to 319,116,989.43, 477,693,716.11 and 208,213,858.10 is: 311,680,214.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,116,989.43 : 477,693,716.11 = 208,213,858.10 : x
  2. Step 2: Convert to fraction form
    319,116,989.43/477,693,716.11 = 208,213,858.10/x
  3. Step 3: Cross multiply
    319,116,989.43x = 477,693,716.11 × 208,213,858.10
  4. Step 4: Simplify right side
    319,116,989.43x = 99,462,451,622,062,928
  5. Step 5: Solve for x
    x = 99,462,451,622,062,928/319,116,989.43
  6. Step 6: Final answer
    x = 311,680,214.21

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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.