Home / 12,920,959.56-19,356,601.26-7,223,906.76

Finding the Fourth Proportional to 12,920,959.56, 19,356,601.26 and 7,223,906.76

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Solution

The fourth proportional to 12,920,959.56, 19,356,601.26 and 7,223,906.76 is: 10,821,973.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,920,959.56 : 19,356,601.26 = 7,223,906.76 : x
  2. Step 2: Convert to fraction form
    12,920,959.56/19,356,601.26 = 7,223,906.76/x
  3. Step 3: Cross multiply
    12,920,959.56x = 19,356,601.26 × 7,223,906.76
  4. Step 4: Simplify right side
    12,920,959.56x = 139,830,282,692,738.53
  5. Step 5: Solve for x
    x = 139,830,282,692,738.53/12,920,959.56
  6. Step 6: Final answer
    x = 10,821,973.56

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1.5x scale

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.