Home / 12,789,932.80-19,168,569.60-5,208,332.80

Finding the Fourth Proportional to 12,789,932.80, 19,168,569.60 and 5,208,332.80

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Solution

The fourth proportional to 12,789,932.80, 19,168,569.60 and 5,208,332.80 is: 7,805,849.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789,932.80 : 19,168,569.60 = 5,208,332.80 : x
  2. Step 2: Convert to fraction form
    12,789,932.80/19,168,569.60 = 5,208,332.80/x
  3. Step 3: Cross multiply
    12,789,932.80x = 19,168,569.60 × 5,208,332.80
  4. Step 4: Simplify right side
    12,789,932.80x = 99,836,289,776,762.89
  5. Step 5: Solve for x
    x = 99,836,289,776,762.89/12,789,932.80
  6. Step 6: Final answer
    x = 7,805,849.44

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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.