Home / 13,158,729.60-19,738,094.40-7,850,313.60

Finding the Fourth Proportional to 13,158,729.60, 19,738,094.40 and 7,850,313.60

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Solution

The fourth proportional to 13,158,729.60, 19,738,094.40 and 7,850,313.60 is: 11,775,470.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,158,729.60 : 19,738,094.40 = 7,850,313.60 : x
  2. Step 2: Convert to fraction form
    13,158,729.60/19,738,094.40 = 7,850,313.60/x
  3. Step 3: Cross multiply
    13,158,729.60x = 19,738,094.40 × 7,850,313.60
  4. Step 4: Simplify right side
    13,158,729.60x = 154,950,230,906,403.81
  5. Step 5: Solve for x
    x = 154,950,230,906,403.81/13,158,729.60
  6. Step 6: Final answer
    x = 11,775,470.40

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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.