Home / 239,213,986.80-358,988,941.80-102,997,129.20

Finding the Fourth Proportional to 239,213,986.80, 358,988,941.80 and 102,997,129.20

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Solution

The fourth proportional to 239,213,986.80, 358,988,941.80 and 102,997,129.20 is: 154,568,012.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,213,986.80 : 358,988,941.80 = 102,997,129.20 : x
  2. Step 2: Convert to fraction form
    239,213,986.80/358,988,941.80 = 102,997,129.20/x
  3. Step 3: Cross multiply
    239,213,986.80x = 358,988,941.80 × 102,997,129.20
  4. Step 4: Simplify right side
    239,213,986.80x = 36,974,830,419,945,880
  5. Step 5: Solve for x
    x = 36,974,830,419,945,880/239,213,986.80
  6. Step 6: Final answer
    x = 154,568,012.16

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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.