Home / 1,173,066,516.48-1,618,848,372.60-644,479,353.84

Finding the Fourth Proportional to 1,173,066,516.48, 1,618,848,372.60 and 644,479,353.84

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Solution

The fourth proportional to 1,173,066,516.48, 1,618,848,372.60 and 644,479,353.84 is: 889,390,617.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,066,516.48 : 1,618,848,372.60 = 644,479,353.84 : x
  2. Step 2: Convert to fraction form
    1,173,066,516.48/1,618,848,372.60 = 644,479,353.84/x
  3. Step 3: Cross multiply
    1,173,066,516.48x = 1,618,848,372.60 × 644,479,353.84
  4. Step 4: Simplify right side
    1,173,066,516.48x = 1,043,314,353,138,183,552
  5. Step 5: Solve for x
    x = 1,043,314,353,138,183,552/1,173,066,516.48
  6. Step 6: Final answer
    x = 889,390,617.23

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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.