Home / 81,811,250,128.58-112,977,498,295.05-77,354,224,493.54

Finding the Fourth Proportional to 81,811,250,128.58, 112,977,498,295.05 and 77,354,224,493.54

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Solution

The fourth proportional to 81,811,250,128.58, 112,977,498,295.05 and 77,354,224,493.54 is: 106,822,554,992.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,811,250,128.58 : 112,977,498,295.05 = 77,354,224,493.54 : x
  2. Step 2: Convert to fraction form
    81,811,250,128.58/112,977,498,295.05 = 77,354,224,493.54/x
  3. Step 3: Cross multiply
    81,811,250,128.58x = 112,977,498,295.05 × 77,354,224,493.54
  4. Step 4: Simplify right side
    81,811,250,128.58x = 8,739,286,765,833,829,744,640
  5. Step 5: Solve for x
    x = 8,739,286,765,833,829,744,640/81,811,250,128.58
  6. Step 6: Final answer
    x = 106,822,554,992.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.