Home / 1,328,603,903.70-1,992,905,855.55-408,360,668.10

Finding the Fourth Proportional to 1,328,603,903.70, 1,992,905,855.55 and 408,360,668.10

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Solution

The fourth proportional to 1,328,603,903.70, 1,992,905,855.55 and 408,360,668.10 is: 612,541,002.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,603,903.70 : 1,992,905,855.55 = 408,360,668.10 : x
  2. Step 2: Convert to fraction form
    1,328,603,903.70/1,992,905,855.55 = 408,360,668.10/x
  3. Step 3: Cross multiply
    1,328,603,903.70x = 1,992,905,855.55 × 408,360,668.10
  4. Step 4: Simplify right side
    1,328,603,903.70x = 813,824,366,632,800,128
  5. Step 5: Solve for x
    x = 813,824,366,632,800,128/1,328,603,903.70
  6. Step 6: Final answer
    x = 612,541,002.15

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.