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Finding the Fourth Proportional to 15,933,571,890.40, 22,339,652,381.60 and 15,933,571,890.40

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Solution

The fourth proportional to 15,933,571,890.40, 22,339,652,381.60 and 15,933,571,890.40 is: 22,339,652,381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,933,571,890.40 : 22,339,652,381.60 = 15,933,571,890.40 : x
  2. Step 2: Convert to fraction form
    15,933,571,890.40/22,339,652,381.60 = 15,933,571,890.40/x
  3. Step 3: Cross multiply
    15,933,571,890.40x = 22,339,652,381.60 × 15,933,571,890.40
  4. Step 4: Simplify right side
    15,933,571,890.40x = 355,950,457,228,769,165,312
  5. Step 5: Solve for x
    x = 355,950,457,228,769,165,312/15,933,571,890.40
  6. Step 6: Final answer
    x = 22,339,652,381.60

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Double scale
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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.