Home / 1,079,631,140.86-1,620,198,485.46-380,179,615.68

Finding the Fourth Proportional to 1,079,631,140.86, 1,620,198,485.46 and 380,179,615.68

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Solution

The fourth proportional to 1,079,631,140.86, 1,620,198,485.46 and 380,179,615.68 is: 570,534,152.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,631,140.86 : 1,620,198,485.46 = 380,179,615.68 : x
  2. Step 2: Convert to fraction form
    1,079,631,140.86/1,620,198,485.46 = 380,179,615.68/x
  3. Step 3: Cross multiply
    1,079,631,140.86x = 1,620,198,485.46 × 380,179,615.68
  4. Step 4: Simplify right side
    1,079,631,140.86x = 615,966,437,527,500,928
  5. Step 5: Solve for x
    x = 615,966,437,527,500,928/1,079,631,140.86
  6. Step 6: Final answer
    x = 570,534,152.10

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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.