Home / 1,603,973,138.40-2,405,623,784.40-786,671,992.80

Finding the Fourth Proportional to 1,603,973,138.40, 2,405,623,784.40 and 786,671,992.80

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Solution

The fourth proportional to 1,603,973,138.40, 2,405,623,784.40 and 786,671,992.80 is: 1,179,843,234.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,603,973,138.40 : 2,405,623,784.40 = 786,671,992.80 : x
  2. Step 2: Convert to fraction form
    1,603,973,138.40/2,405,623,784.40 = 786,671,992.80/x
  3. Step 3: Cross multiply
    1,603,973,138.40x = 2,405,623,784.40 × 786,671,992.80
  4. Step 4: Simplify right side
    1,603,973,138.40x = 1,892,436,856,401,025,536
  5. Step 5: Solve for x
    x = 1,892,436,856,401,025,536/1,603,973,138.40
  6. Step 6: Final answer
    x = 1,179,843,234.96

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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.