Home / 415,357,983.76-622,855,211.64-197,070,578.32

Finding the Fourth Proportional to 415,357,983.76, 622,855,211.64 and 197,070,578.32

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Solution

The fourth proportional to 415,357,983.76, 622,855,211.64 and 197,070,578.32 is: 295,519,627.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,357,983.76 : 622,855,211.64 = 197,070,578.32 : x
  2. Step 2: Convert to fraction form
    415,357,983.76/622,855,211.64 = 197,070,578.32/x
  3. Step 3: Cross multiply
    415,357,983.76x = 622,855,211.64 × 197,070,578.32
  4. Step 4: Simplify right side
    415,357,983.76x = 122,746,436,767,520,784
  5. Step 5: Solve for x
    x = 122,746,436,767,520,784/415,357,983.76
  6. Step 6: Final answer
    x = 295,519,627.81

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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.