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Finding the Fourth Proportional to 3,669,288,719.40, 5,151,516,089.40 and 3,669,288,719.40

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Solution

The fourth proportional to 3,669,288,719.40, 5,151,516,089.40 and 3,669,288,719.40 is: 5,151,516,089.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,669,288,719.40 : 5,151,516,089.40 = 3,669,288,719.40 : x
  2. Step 2: Convert to fraction form
    3,669,288,719.40/5,151,516,089.40 = 3,669,288,719.40/x
  3. Step 3: Cross multiply
    3,669,288,719.40x = 5,151,516,089.40 × 3,669,288,719.40
  4. Step 4: Simplify right side
    3,669,288,719.40x = 18,902,399,874,643,021,824
  5. Step 5: Solve for x
    x = 18,902,399,874,643,021,824/3,669,288,719.40
  6. Step 6: Final answer
    x = 5,151,516,089.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.