Home / 13,410,619,918.67-18,500,840,392.49-7,982,111,643.69

Finding the Fourth Proportional to 13,410,619,918.67, 18,500,840,392.49 and 7,982,111,643.69

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Solution

The fourth proportional to 13,410,619,918.67, 18,500,840,392.49 and 7,982,111,643.69 is: 11,011,852,875.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,410,619,918.67 : 18,500,840,392.49 = 7,982,111,643.69 : x
  2. Step 2: Convert to fraction form
    13,410,619,918.67/18,500,840,392.49 = 7,982,111,643.69/x
  3. Step 3: Cross multiply
    13,410,619,918.67x = 18,500,840,392.49 × 7,982,111,643.69
  4. Step 4: Simplify right side
    13,410,619,918.67x = 147,675,773,515,043,209,216
  5. Step 5: Solve for x
    x = 147,675,773,515,043,209,216/13,410,619,918.67
  6. Step 6: Final answer
    x = 11,011,852,875.60

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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.