Home / 391,133,579.40-586,700,369.10-196,969,969.80

Finding the Fourth Proportional to 391,133,579.40, 586,700,369.10 and 196,969,969.80

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Solution

The fourth proportional to 391,133,579.40, 586,700,369.10 and 196,969,969.80 is: 295,454,954.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,133,579.40 : 586,700,369.10 = 196,969,969.80 : x
  2. Step 2: Convert to fraction form
    391,133,579.40/586,700,369.10 = 196,969,969.80/x
  3. Step 3: Cross multiply
    391,133,579.40x = 586,700,369.10 × 196,969,969.80
  4. Step 4: Simplify right side
    391,133,579.40x = 115,562,353,983,275,872
  5. Step 5: Solve for x
    x = 115,562,353,983,275,872/391,133,579.40
  6. Step 6: Final answer
    x = 295,454,954.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.