Home / 715,678,015.38-1,073,397,421.71-198,160,768.50

Finding the Fourth Proportional to 715,678,015.38, 1,073,397,421.71 and 198,160,768.50

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Solution

The fourth proportional to 715,678,015.38, 1,073,397,421.71 and 198,160,768.50 is: 297,208,036.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,678,015.38 : 1,073,397,421.71 = 198,160,768.50 : x
  2. Step 2: Convert to fraction form
    715,678,015.38/1,073,397,421.71 = 198,160,768.50/x
  3. Step 3: Cross multiply
    715,678,015.38x = 1,073,397,421.71 × 198,160,768.50
  4. Step 4: Simplify right side
    715,678,015.38x = 212,705,257,991,972,192
  5. Step 5: Solve for x
    x = 212,705,257,991,972,192/715,678,015.38
  6. Step 6: Final answer
    x = 297,208,036.88

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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.