Home / 13,112,042,387.58-18,083,183,052.69-9,294,013,479.42

Finding the Fourth Proportional to 13,112,042,387.58, 18,083,183,052.69 and 9,294,013,479.42

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Solution

The fourth proportional to 13,112,042,387.58, 18,083,183,052.69 and 9,294,013,479.42 is: 12,817,632,987.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112,042,387.58 : 18,083,183,052.69 = 9,294,013,479.42 : x
  2. Step 2: Convert to fraction form
    13,112,042,387.58/18,083,183,052.69 = 9,294,013,479.42/x
  3. Step 3: Cross multiply
    13,112,042,387.58x = 18,083,183,052.69 × 9,294,013,479.42
  4. Step 4: Simplify right side
    13,112,042,387.58x = 168,065,347,042,520,137,728
  5. Step 5: Solve for x
    x = 168,065,347,042,520,137,728/13,112,042,387.58
  6. Step 6: Final answer
    x = 12,817,632,987.65

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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.