Home / 212,615,128.80-318,922,693.20-182,004,127.20

Finding the Fourth Proportional to 212,615,128.80, 318,922,693.20 and 182,004,127.20

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Solution

The fourth proportional to 212,615,128.80, 318,922,693.20 and 182,004,127.20 is: 273,006,190.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,615,128.80 : 318,922,693.20 = 182,004,127.20 : x
  2. Step 2: Convert to fraction form
    212,615,128.80/318,922,693.20 = 182,004,127.20/x
  3. Step 3: Cross multiply
    212,615,128.80x = 318,922,693.20 × 182,004,127.20
  4. Step 4: Simplify right side
    212,615,128.80x = 58,045,246,420,139,368
  5. Step 5: Solve for x
    x = 58,045,246,420,139,368/212,615,128.80
  6. Step 6: Final answer
    x = 273,006,190.80

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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.