Home / 28,873,631,831.15-39,840,343,387.41-16,661,881,928.83

Finding the Fourth Proportional to 28,873,631,831.15, 39,840,343,387.41 and 16,661,881,928.83

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Solution

The fourth proportional to 28,873,631,831.15, 39,840,343,387.41 and 16,661,881,928.83 is: 22,990,356,786.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,873,631,831.15 : 39,840,343,387.41 = 16,661,881,928.83 : x
  2. Step 2: Convert to fraction form
    28,873,631,831.15/39,840,343,387.41 = 16,661,881,928.83/x
  3. Step 3: Cross multiply
    28,873,631,831.15x = 39,840,343,387.41 × 16,661,881,928.83
  4. Step 4: Simplify right side
    28,873,631,831.15x = 663,815,097,525,028,651,008
  5. Step 5: Solve for x
    x = 663,815,097,525,028,651,008/28,873,631,831.15
  6. Step 6: Final answer
    x = 22,990,356,786.67

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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.