Home / 72,040,346,469.19-99,415,687,550.93-39,927,781,823.14

Finding the Fourth Proportional to 72,040,346,469.19, 99,415,687,550.93 and 39,927,781,823.14

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Solution

The fourth proportional to 72,040,346,469.19, 99,415,687,550.93 and 39,927,781,823.14 is: 55,100,344,138.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,040,346,469.19 : 99,415,687,550.93 = 39,927,781,823.14 : x
  2. Step 2: Convert to fraction form
    72,040,346,469.19/99,415,687,550.93 = 39,927,781,823.14/x
  3. Step 3: Cross multiply
    72,040,346,469.19x = 99,415,687,550.93 × 39,927,781,823.14
  4. Step 4: Simplify right side
    72,040,346,469.19x = 3,969,447,882,330,987,823,104
  5. Step 5: Solve for x
    x = 3,969,447,882,330,987,823,104/72,040,346,469.19
  6. Step 6: Final answer
    x = 55,100,344,138.80

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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.