Home / 711,139,092,026.40-981,372,673,299.38-385,978,450,874.93

Finding the Fourth Proportional to 711,139,092,026.40, 981,372,673,299.38 and 385,978,450,874.93

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Solution

The fourth proportional to 711,139,092,026.40, 981,372,673,299.38 and 385,978,450,874.93 is: 532,650,656,416.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,139,092,026.40 : 981,372,673,299.38 = 385,978,450,874.93 : x
  2. Step 2: Convert to fraction form
    711,139,092,026.40/981,372,673,299.38 = 385,978,450,874.93/x
  3. Step 3: Cross multiply
    711,139,092,026.40x = 981,372,673,299.38 × 385,978,450,874.93
  4. Step 4: Simplify right side
    711,139,092,026.40x = 378,788,704,171,083,480,170,496
  5. Step 5: Solve for x
    x = 378,788,704,171,083,480,170,496/711,139,092,026.40
  6. Step 6: Final answer
    x = 532,650,656,416.20

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Double scale
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1.5x scale

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.