Home / 407,822,793,839.65-611,629,848,281.45-120,913,760,921.93

Finding the Fourth Proportional to 407,822,793,839.65, 611,629,848,281.45 and 120,913,760,921.93

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Solution

The fourth proportional to 407,822,793,839.65, 611,629,848,281.45 and 120,913,760,921.93 is: 181,339,705,295.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,822,793,839.65 : 611,629,848,281.45 = 120,913,760,921.93 : x
  2. Step 2: Convert to fraction form
    407,822,793,839.65/611,629,848,281.45 = 120,913,760,921.93/x
  3. Step 3: Cross multiply
    407,822,793,839.65x = 611,629,848,281.45 × 120,913,760,921.93
  4. Step 4: Simplify right side
    407,822,793,839.65x = 73,954,465,247,819,556,978,688
  5. Step 5: Solve for x
    x = 73,954,465,247,819,556,978,688/407,822,793,839.65
  6. Step 6: Final answer
    x = 181,339,705,295.87

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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.