Home / 711,139,092,034.65-981,372,673,310.72-385,978,450,883.18

Finding the Fourth Proportional to 711,139,092,034.65, 981,372,673,310.72 and 385,978,450,883.18

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Solution

The fourth proportional to 711,139,092,034.65, 981,372,673,310.72 and 385,978,450,883.18 is: 532,650,656,427.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,139,092,034.65 : 981,372,673,310.72 = 385,978,450,883.18 : x
  2. Step 2: Convert to fraction form
    711,139,092,034.65/981,372,673,310.72 = 385,978,450,883.18/x
  3. Step 3: Cross multiply
    711,139,092,034.65x = 981,372,673,310.72 × 385,978,450,883.18
  4. Step 4: Simplify right side
    711,139,092,034.65x = 378,788,704,183,556,803,395,584
  5. Step 5: Solve for x
    x = 378,788,704,183,556,803,395,584/711,139,092,034.65
  6. Step 6: Final answer
    x = 532,650,656,427.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.