Home / 165,888,126.80-248,832,190.20-85,117,259.60

Finding the Fourth Proportional to 165,888,126.80, 248,832,190.20 and 85,117,259.60

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Solution

The fourth proportional to 165,888,126.80, 248,832,190.20 and 85,117,259.60 is: 127,675,889.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,888,126.80 : 248,832,190.20 = 85,117,259.60 : x
  2. Step 2: Convert to fraction form
    165,888,126.80/248,832,190.20 = 85,117,259.60/x
  3. Step 3: Cross multiply
    165,888,126.80x = 248,832,190.20 × 85,117,259.60
  4. Step 4: Simplify right side
    165,888,126.80x = 21,179,914,130,089,972
  5. Step 5: Solve for x
    x = 21,179,914,130,089,972/165,888,126.80
  6. Step 6: Final answer
    x = 127,675,889.40

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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.