Home / 990,792,414.30-1,485,810,707.85-300,470,238.30

Finding the Fourth Proportional to 990,792,414.30, 1,485,810,707.85 and 300,470,238.30

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Solution

The fourth proportional to 990,792,414.30, 1,485,810,707.85 and 300,470,238.30 is: 450,590,750.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,792,414.30 : 1,485,810,707.85 = 300,470,238.30 : x
  2. Step 2: Convert to fraction form
    990,792,414.30/1,485,810,707.85 = 300,470,238.30/x
  3. Step 3: Cross multiply
    990,792,414.30x = 1,485,810,707.85 × 300,470,238.30
  4. Step 4: Simplify right side
    990,792,414.30x = 446,441,897,456,381,184
  5. Step 5: Solve for x
    x = 446,441,897,456,381,184/990,792,414.30
  6. Step 6: Final answer
    x = 450,590,750.41

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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.