Home / 509,868,230,863.86-703,679,858,576.20-290,190,337,357.76

Finding the Fourth Proportional to 509,868,230,863.86, 703,679,858,576.20 and 290,190,337,357.76

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Solution

The fourth proportional to 509,868,230,863.86, 703,679,858,576.20 and 290,190,337,357.76 is: 400,497,781,958.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,868,230,863.86 : 703,679,858,576.20 = 290,190,337,357.76 : x
  2. Step 2: Convert to fraction form
    509,868,230,863.86/703,679,858,576.20 = 290,190,337,357.76/x
  3. Step 3: Cross multiply
    509,868,230,863.86x = 703,679,858,576.20 × 290,190,337,357.76
  4. Step 4: Simplify right side
    509,868,230,863.86x = 204,201,095,552,088,305,303,552
  5. Step 5: Solve for x
    x = 204,201,095,552,088,305,303,552/509,868,230,863.86
  6. Step 6: Final answer
    x = 400,497,781,958.52

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Double scale
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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.