Home / 78,259,608,889.20-117,389,413,333.80-19,371,694,561.20

Finding the Fourth Proportional to 78,259,608,889.20, 117,389,413,333.80 and 19,371,694,561.20

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Solution

The fourth proportional to 78,259,608,889.20, 117,389,413,333.80 and 19,371,694,561.20 is: 29,057,541,841.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,259,608,889.20 : 117,389,413,333.80 = 19,371,694,561.20 : x
  2. Step 2: Convert to fraction form
    78,259,608,889.20/117,389,413,333.80 = 19,371,694,561.20/x
  3. Step 3: Cross multiply
    78,259,608,889.20x = 117,389,413,333.80 × 19,371,694,561.20
  4. Step 4: Simplify right side
    78,259,608,889.20x = 2,274,031,859,820,832,489,472
  5. Step 5: Solve for x
    x = 2,274,031,859,820,832,489,472/78,259,608,889.20
  6. Step 6: Final answer
    x = 29,057,541,841.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.