Home / 1,443,486,465.56-1,992,013,244.72-783,436,743.56

Finding the Fourth Proportional to 1,443,486,465.56, 1,992,013,244.72 and 783,436,743.56

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Solution

The fourth proportional to 1,443,486,465.56, 1,992,013,244.72 and 783,436,743.56 is: 1,081,143,749.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,486,465.56 : 1,992,013,244.72 = 783,436,743.56 : x
  2. Step 2: Convert to fraction form
    1,443,486,465.56/1,992,013,244.72 = 783,436,743.56/x
  3. Step 3: Cross multiply
    1,443,486,465.56x = 1,992,013,244.72 × 783,436,743.56
  4. Step 4: Simplify right side
    1,443,486,465.56x = 1,560,616,369,571,826,176
  5. Step 5: Solve for x
    x = 1,560,616,369,571,826,176/1,443,486,465.56
  6. Step 6: Final answer
    x = 1,081,143,749.39

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Double scale
Find fourth proportional to 1,443,486,466.56, 1,992,013,246.10 and 783,436,744.56
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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.