Home / 13,886,430,308.09-19,164,863,559.17-7,784,430,955.80

Finding the Fourth Proportional to 13,886,430,308.09, 19,164,863,559.17 and 7,784,430,955.80

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Solution

The fourth proportional to 13,886,430,308.09, 19,164,863,559.17 and 7,784,430,955.80 is: 10,743,405,889.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886,430,308.09 : 19,164,863,559.17 = 7,784,430,955.80 : x
  2. Step 2: Convert to fraction form
    13,886,430,308.09/19,164,863,559.17 = 7,784,430,955.80/x
  3. Step 3: Cross multiply
    13,886,430,308.09x = 19,164,863,559.17 × 7,784,430,955.80
  4. Step 4: Simplify right side
    13,886,430,308.09x = 149,187,557,153,647,394,816
  5. Step 5: Solve for x
    x = 149,187,557,153,647,394,816/13,886,430,308.09
  6. Step 6: Final answer
    x = 10,743,405,889.33

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Double scale
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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.