Home / 78,171,490,627-117,203,705,151.58-39,808,453,179.14

Finding the Fourth Proportional to 78,171,490,627, 117,203,705,151.58 and 39,808,453,179.14

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Solution

The fourth proportional to 78,171,490,627, 117,203,705,151.58 and 39,808,453,179.14 is: 59,685,419,473.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,171,490,627 : 117,203,705,151.58 = 39,808,453,179.14 : x
  2. Step 2: Convert to fraction form
    78,171,490,627/117,203,705,151.58 = 39,808,453,179.14/x
  3. Step 3: Cross multiply
    78,171,490,627x = 117,203,705,151.58 × 39,808,453,179.14
  4. Step 4: Simplify right side
    78,171,490,627x = 4,665,698,208,947,933,544,448
  5. Step 5: Solve for x
    x = 4,665,698,208,947,933,544,448/78,171,490,627
  6. Step 6: Final answer
    x = 59,685,419,473.59

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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.