Home / 1,277,742,961.76-1,763,286,462.96-691,032,097.76

Finding the Fourth Proportional to 1,277,742,961.76, 1,763,286,462.96 and 691,032,097.76

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Solution

The fourth proportional to 1,277,742,961.76, 1,763,286,462.96 and 691,032,097.76 is: 953,624,930.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,742,961.76 : 1,763,286,462.96 = 691,032,097.76 : x
  2. Step 2: Convert to fraction form
    1,277,742,961.76/1,763,286,462.96 = 691,032,097.76/x
  3. Step 3: Cross multiply
    1,277,742,961.76x = 1,763,286,462.96 × 691,032,097.76
  4. Step 4: Simplify right side
    1,277,742,961.76x = 1,218,487,543,451,059,456
  5. Step 5: Solve for x
    x = 1,218,487,543,451,059,456/1,277,742,961.76
  6. Step 6: Final answer
    x = 953,624,930.77

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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.