Home / 312,130,416.60-430,739,825.09-186,682,610.34

Finding the Fourth Proportional to 312,130,416.60, 430,739,825.09 and 186,682,610.34

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Solution

The fourth proportional to 312,130,416.60, 430,739,825.09 and 186,682,610.34 is: 257,621,912.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,130,416.60 : 430,739,825.09 = 186,682,610.34 : x
  2. Step 2: Convert to fraction form
    312,130,416.60/430,739,825.09 = 186,682,610.34/x
  3. Step 3: Cross multiply
    312,130,416.60x = 430,739,825.09 × 186,682,610.34
  4. Step 4: Simplify right side
    312,130,416.60x = 80,411,634,924,262,816
  5. Step 5: Solve for x
    x = 80,411,634,924,262,816/312,130,416.60
  6. Step 6: Final answer
    x = 257,621,912.66

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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.