Home / 77,316,793.80-115,972,566.30-19,809,628.80

Finding the Fourth Proportional to 77,316,793.80, 115,972,566.30 and 19,809,628.80

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Solution

The fourth proportional to 77,316,793.80, 115,972,566.30 and 19,809,628.80 is: 29,713,770.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,316,793.80 : 115,972,566.30 = 19,809,628.80 : x
  2. Step 2: Convert to fraction form
    77,316,793.80/115,972,566.30 = 19,809,628.80/x
  3. Step 3: Cross multiply
    77,316,793.80x = 115,972,566.30 × 19,809,628.80
  4. Step 4: Simplify right side
    77,316,793.80x = 2,297,373,489,386,389.50
  5. Step 5: Solve for x
    x = 2,297,373,489,386,389.50/77,316,793.80
  6. Step 6: Final answer
    x = 29,713,770.79

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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.