Home / 711,139,092,045.58-981,372,673,325.54-385,978,450,894.06

Finding the Fourth Proportional to 711,139,092,045.58, 981,372,673,325.54 and 385,978,450,894.06

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Solution

The fourth proportional to 711,139,092,045.58, 981,372,673,325.54 and 385,978,450,894.06 is: 532,650,656,442.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,139,092,045.58 : 981,372,673,325.54 = 385,978,450,894.06 : x
  2. Step 2: Convert to fraction form
    711,139,092,045.58/981,372,673,325.54 = 385,978,450,894.06/x
  3. Step 3: Cross multiply
    711,139,092,045.58x = 981,372,673,325.54 × 385,978,450,894.06
  4. Step 4: Simplify right side
    711,139,092,045.58x = 378,788,704,199,954,317,443,072
  5. Step 5: Solve for x
    x = 378,788,704,199,954,317,443,072/711,139,092,045.58
  6. Step 6: Final answer
    x = 532,650,656,442.43

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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.