Home / 72,871,393,999.20-109,307,090,998.80-43,460,645,992.80

Finding the Fourth Proportional to 72,871,393,999.20, 109,307,090,998.80 and 43,460,645,992.80

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Solution

The fourth proportional to 72,871,393,999.20, 109,307,090,998.80 and 43,460,645,992.80 is: 65,190,968,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,871,393,999.20 : 109,307,090,998.80 = 43,460,645,992.80 : x
  2. Step 2: Convert to fraction form
    72,871,393,999.20/109,307,090,998.80 = 43,460,645,992.80/x
  3. Step 3: Cross multiply
    72,871,393,999.20x = 109,307,090,998.80 × 43,460,645,992.80
  4. Step 4: Simplify right side
    72,871,393,999.20x = 4,750,556,786,401,622,360,064
  5. Step 5: Solve for x
    x = 4,750,556,786,401,622,360,064/72,871,393,999.20
  6. Step 6: Final answer
    x = 65,190,968,989.20

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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.