Home / 409,202,488.80-613,803,733.20-245,943,813.60

Finding the Fourth Proportional to 409,202,488.80, 613,803,733.20 and 245,943,813.60

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Solution

The fourth proportional to 409,202,488.80, 613,803,733.20 and 245,943,813.60 is: 368,915,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,202,488.80 : 613,803,733.20 = 245,943,813.60 : x
  2. Step 2: Convert to fraction form
    409,202,488.80/613,803,733.20 = 245,943,813.60/x
  3. Step 3: Cross multiply
    409,202,488.80x = 613,803,733.20 × 245,943,813.60
  4. Step 4: Simplify right side
    409,202,488.80x = 150,961,230,945,124,928
  5. Step 5: Solve for x
    x = 150,961,230,945,124,928/409,202,488.80
  6. Step 6: Final answer
    x = 368,915,720.40

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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.