Home / 12,783,628.80-19,159,113.60-5,202,028.80

Finding the Fourth Proportional to 12,783,628.80, 19,159,113.60 and 5,202,028.80

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Solution

The fourth proportional to 12,783,628.80, 19,159,113.60 and 5,202,028.80 is: 7,796,398.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,783,628.80 : 19,159,113.60 = 5,202,028.80 : x
  2. Step 2: Convert to fraction form
    12,783,628.80/19,159,113.60 = 5,202,028.80/x
  3. Step 3: Cross multiply
    12,783,628.80x = 19,159,113.60 × 5,202,028.80
  4. Step 4: Simplify right side
    12,783,628.80x = 99,666,260,729,671.69
  5. Step 5: Solve for x
    x = 99,666,260,729,671.69/12,783,628.80
  6. Step 6: Final answer
    x = 7,796,398.21

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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.