Home / 28,778,446,903.91-39,711,591,556.65-15,917,810,066.10

Finding the Fourth Proportional to 28,778,446,903.91, 39,711,591,556.65 and 15,917,810,066.10

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Solution

The fourth proportional to 28,778,446,903.91, 39,711,591,556.65 and 15,917,810,066.10 is: 21,965,103,743.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,778,446,903.91 : 39,711,591,556.65 = 15,917,810,066.10 : x
  2. Step 2: Convert to fraction form
    28,778,446,903.91/39,711,591,556.65 = 15,917,810,066.10/x
  3. Step 3: Cross multiply
    28,778,446,903.91x = 39,711,591,556.65 × 15,917,810,066.10
  4. Step 4: Simplify right side
    28,778,446,903.91x = 632,121,571,821,295,239,168
  5. Step 5: Solve for x
    x = 632,121,571,821,295,239,168/28,778,446,903.91
  6. Step 6: Final answer
    x = 21,965,103,743.51

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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.