Home / 81,888,572,711.40-122,832,859,067.10-68,664,620,020.20

Finding the Fourth Proportional to 81,888,572,711.40, 122,832,859,067.10 and 68,664,620,020.20

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Solution

The fourth proportional to 81,888,572,711.40, 122,832,859,067.10 and 68,664,620,020.20 is: 102,996,930,030.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,888,572,711.40 : 122,832,859,067.10 = 68,664,620,020.20 : x
  2. Step 2: Convert to fraction form
    81,888,572,711.40/122,832,859,067.10 = 68,664,620,020.20/x
  3. Step 3: Cross multiply
    81,888,572,711.40x = 122,832,859,067.10 × 68,664,620,020.20
  4. Step 4: Simplify right side
    81,888,572,711.40x = 8,434,271,593,837,199,622,144
  5. Step 5: Solve for x
    x = 8,434,271,593,837,199,622,144/81,888,572,711.40
  6. Step 6: Final answer
    x = 102,996,930,030.30

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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.