Home / 13,651,939,709.26-18,838,916,858.81-7,547,939,372.57

Finding the Fourth Proportional to 13,651,939,709.26, 18,838,916,858.81 and 7,547,939,372.57

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Solution

The fourth proportional to 13,651,939,709.26, 18,838,916,858.81 and 7,547,939,372.57 is: 10,415,736,175.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,651,939,709.26 : 18,838,916,858.81 = 7,547,939,372.57 : x
  2. Step 2: Convert to fraction form
    13,651,939,709.26/18,838,916,858.81 = 7,547,939,372.57/x
  3. Step 3: Cross multiply
    13,651,939,709.26x = 18,838,916,858.81 × 7,547,939,372.57
  4. Step 4: Simplify right side
    13,651,939,709.26x = 142,195,002,295,184,752,640
  5. Step 5: Solve for x
    x = 142,195,002,295,184,752,640/13,651,939,709.26
  6. Step 6: Final answer
    x = 10,415,736,175.48

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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.