Home / 7,258,147.80-10,887,221.70-4,990,666.20

Finding the Fourth Proportional to 7,258,147.80, 10,887,221.70 and 4,990,666.20

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Solution

The fourth proportional to 7,258,147.80, 10,887,221.70 and 4,990,666.20 is: 7,485,999.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,258,147.80 : 10,887,221.70 = 4,990,666.20 : x
  2. Step 2: Convert to fraction form
    7,258,147.80/10,887,221.70 = 4,990,666.20/x
  3. Step 3: Cross multiply
    7,258,147.80x = 10,887,221.70 × 4,990,666.20
  4. Step 4: Simplify right side
    7,258,147.80x = 54,334,489,350,096.54
  5. Step 5: Solve for x
    x = 54,334,489,350,096.54/7,258,147.80
  6. Step 6: Final answer
    x = 7,485,999.30

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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.