Home / 609,855,561,901.45-842,808,188,083.65-499,816,347,948.62

Finding the Fourth Proportional to 609,855,561,901.45, 842,808,188,083.65 and 499,816,347,948.62

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Solution

The fourth proportional to 609,855,561,901.45, 842,808,188,083.65 and 499,816,347,948.62 is: 690,736,195,429.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,855,561,901.45 : 842,808,188,083.65 = 499,816,347,948.62 : x
  2. Step 2: Convert to fraction form
    609,855,561,901.45/842,808,188,083.65 = 499,816,347,948.62/x
  3. Step 3: Cross multiply
    609,855,561,901.45x = 842,808,188,083.65 × 499,816,347,948.62
  4. Step 4: Simplify right side
    609,855,561,901.45x = 421,249,310,589,163,585,667,072
  5. Step 5: Solve for x
    x = 421,249,310,589,163,585,667,072/609,855,561,901.45
  6. Step 6: Final answer
    x = 690,736,195,429.23

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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.