Home / 1,286,163,279.77-1,774,250,911.55-840,387,244.73

Finding the Fourth Proportional to 1,286,163,279.77, 1,774,250,911.55 and 840,387,244.73

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Solution

The fourth proportional to 1,286,163,279.77, 1,774,250,911.55 and 840,387,244.73 is: 1,159,306,799.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,163,279.77 : 1,774,250,911.55 = 840,387,244.73 : x
  2. Step 2: Convert to fraction form
    1,286,163,279.77/1,774,250,911.55 = 840,387,244.73/x
  3. Step 3: Cross multiply
    1,286,163,279.77x = 1,774,250,911.55 × 840,387,244.73
  4. Step 4: Simplify right side
    1,286,163,279.77x = 1,491,057,835,004,122,368
  5. Step 5: Solve for x
    x = 1,491,057,835,004,122,368/1,286,163,279.77
  6. Step 6: Final answer
    x = 1,159,306,799.12

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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.