Home / 216,334,140,820.68-298,576,863,406.62-120,021,257,285.40

Finding the Fourth Proportional to 216,334,140,820.68, 298,576,863,406.62 and 120,021,257,285.40

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Solution

The fourth proportional to 216,334,140,820.68, 298,576,863,406.62 and 120,021,257,285.40 is: 165,649,168,487.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,334,140,820.68 : 298,576,863,406.62 = 120,021,257,285.40 : x
  2. Step 2: Convert to fraction form
    216,334,140,820.68/298,576,863,406.62 = 120,021,257,285.40/x
  3. Step 3: Cross multiply
    216,334,140,820.68x = 298,576,863,406.62 × 120,021,257,285.40
  4. Step 4: Simplify right side
    216,334,140,820.68x = 35,835,570,542,393,669,189,632
  5. Step 5: Solve for x
    x = 35,835,570,542,393,669,189,632/216,334,140,820.68
  6. Step 6: Final answer
    x = 165,649,168,487.46

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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.