Home / 78,171,490,624.01-117,203,705,147.07-39,808,453,176.14

Finding the Fourth Proportional to 78,171,490,624.01, 117,203,705,147.07 and 39,808,453,176.14

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Solution

The fourth proportional to 78,171,490,624.01, 117,203,705,147.07 and 39,808,453,176.14 is: 59,685,419,469.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,171,490,624.01 : 117,203,705,147.07 = 39,808,453,176.14 : x
  2. Step 2: Convert to fraction form
    78,171,490,624.01/117,203,705,147.07 = 39,808,453,176.14/x
  3. Step 3: Cross multiply
    78,171,490,624.01x = 117,203,705,147.07 × 39,808,453,176.14
  4. Step 4: Simplify right side
    78,171,490,624.01x = 4,665,698,208,416,669,368,320
  5. Step 5: Solve for x
    x = 4,665,698,208,416,669,368,320/78,171,490,624.01
  6. Step 6: Final answer
    x = 59,685,419,469.08

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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.