Home / 13,686,485,923.82-20,538,364,801.98-5,825,885,405.78

Finding the Fourth Proportional to 13,686,485,923.82, 20,538,364,801.98 and 5,825,885,405.78

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Solution

The fourth proportional to 13,686,485,923.82, 20,538,364,801.98 and 5,825,885,405.78 is: 8,742,504,133.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,686,485,923.82 : 20,538,364,801.98 = 5,825,885,405.78 : x
  2. Step 2: Convert to fraction form
    13,686,485,923.82/20,538,364,801.98 = 5,825,885,405.78/x
  3. Step 3: Cross multiply
    13,686,485,923.82x = 20,538,364,801.98 × 5,825,885,405.78
  4. Step 4: Simplify right side
    13,686,485,923.82x = 119,654,159,758,440,906,752
  5. Step 5: Solve for x
    x = 119,654,159,758,440,906,752/13,686,485,923.82
  6. Step 6: Final answer
    x = 8,742,504,133.23

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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.