Home / 208,411,155.44-312,585,982.73-60,819,086.78

Finding the Fourth Proportional to 208,411,155.44, 312,585,982.73 and 60,819,086.78

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Solution

The fourth proportional to 208,411,155.44, 312,585,982.73 and 60,819,086.78 is: 91,219,656.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,411,155.44 : 312,585,982.73 = 60,819,086.78 : x
  2. Step 2: Convert to fraction form
    208,411,155.44/312,585,982.73 = 60,819,086.78/x
  3. Step 3: Cross multiply
    208,411,155.44x = 312,585,982.73 × 60,819,086.78
  4. Step 4: Simplify right side
    208,411,155.44x = 19,011,194,008,304,524
  5. Step 5: Solve for x
    x = 19,011,194,008,304,524/208,411,155.44
  6. Step 6: Final answer
    x = 91,219,656.49

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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.