Home / 409,202,406.80-613,803,610.20-245,943,731.60

Finding the Fourth Proportional to 409,202,406.80, 613,803,610.20 and 245,943,731.60

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Solution

The fourth proportional to 409,202,406.80, 613,803,610.20 and 245,943,731.60 is: 368,915,597.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,202,406.80 : 613,803,610.20 = 245,943,731.60 : x
  2. Step 2: Convert to fraction form
    409,202,406.80/613,803,610.20 = 245,943,731.60/x
  3. Step 3: Cross multiply
    409,202,406.80x = 613,803,610.20 × 245,943,731.60
  4. Step 4: Simplify right side
    409,202,406.80x = 150,961,150,362,139,840
  5. Step 5: Solve for x
    x = 150,961,150,362,139,840/409,202,406.80
  6. Step 6: Final answer
    x = 368,915,597.40

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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.