Home / 247,369,829.28-371,100,359.04-81,382,675.20

Finding the Fourth Proportional to 247,369,829.28, 371,100,359.04 and 81,382,675.20

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Solution

The fourth proportional to 247,369,829.28, 371,100,359.04 and 81,382,675.20 is: 122,089,019.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,369,829.28 : 371,100,359.04 = 81,382,675.20 : x
  2. Step 2: Convert to fraction form
    247,369,829.28/371,100,359.04 = 81,382,675.20/x
  3. Step 3: Cross multiply
    247,369,829.28x = 371,100,359.04 × 81,382,675.20
  4. Step 4: Simplify right side
    247,369,829.28x = 30,201,139,986,355,708
  5. Step 5: Solve for x
    x = 30,201,139,986,355,708/247,369,829.28
  6. Step 6: Final answer
    x = 122,089,019.81

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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.