Home / 509,868,230,863.84-703,679,858,576.16-290,190,337,357.76

Finding the Fourth Proportional to 509,868,230,863.84, 703,679,858,576.16 and 290,190,337,357.76

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Solution

The fourth proportional to 509,868,230,863.84, 703,679,858,576.16 and 290,190,337,357.76 is: 400,497,781,958.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,868,230,863.84 : 703,679,858,576.16 = 290,190,337,357.76 : x
  2. Step 2: Convert to fraction form
    509,868,230,863.84/703,679,858,576.16 = 290,190,337,357.76/x
  3. Step 3: Cross multiply
    509,868,230,863.84x = 703,679,858,576.16 × 290,190,337,357.76
  4. Step 4: Simplify right side
    509,868,230,863.84x = 204,201,095,552,076,729,024,512
  5. Step 5: Solve for x
    x = 204,201,095,552,076,729,024,512/509,868,230,863.84
  6. Step 6: Final answer
    x = 400,497,781,958.51

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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.