Home / 12,012,953.40-18,021,393.54-3,923,580.60

Finding the Fourth Proportional to 12,012,953.40, 18,021,393.54 and 3,923,580.60

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Solution

The fourth proportional to 12,012,953.40, 18,021,393.54 and 3,923,580.60 is: 5,886,012.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012,953.40 : 18,021,393.54 = 3,923,580.60 : x
  2. Step 2: Convert to fraction form
    12,012,953.40/18,021,393.54 = 3,923,580.60/x
  3. Step 3: Cross multiply
    12,012,953.40x = 18,021,393.54 × 3,923,580.60
  4. Step 4: Simplify right side
    12,012,953.40x = 70,708,390,078,509.33
  5. Step 5: Solve for x
    x = 70,708,390,078,509.33/12,012,953.40
  6. Step 6: Final answer
    x = 5,886,012.18

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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.