Home / 13,706,483,858.69-18,910,426,302.08-8,278,991,476.65

Finding the Fourth Proportional to 13,706,483,858.69, 18,910,426,302.08 and 8,278,991,476.65

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Solution

The fourth proportional to 13,706,483,858.69, 18,910,426,302.08 and 8,278,991,476.65 is: 11,422,277,207.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,706,483,858.69 : 18,910,426,302.08 = 8,278,991,476.65 : x
  2. Step 2: Convert to fraction form
    13,706,483,858.69/18,910,426,302.08 = 8,278,991,476.65/x
  3. Step 3: Cross multiply
    13,706,483,858.69x = 18,910,426,302.08 × 8,278,991,476.65
  4. Step 4: Simplify right side
    13,706,483,858.69x = 156,559,258,174,738,300,928
  5. Step 5: Solve for x
    x = 156,559,258,174,738,300,928/13,706,483,858.69
  6. Step 6: Final answer
    x = 11,422,277,207.55

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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.