Home / 13,599,959.06-18,768,280.05-7,405,345.37

Finding the Fourth Proportional to 13,599,959.06, 18,768,280.05 and 7,405,345.37

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Solution

The fourth proportional to 13,599,959.06, 18,768,280.05 and 7,405,345.37 is: 10,219,559.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599,959.06 : 18,768,280.05 = 7,405,345.37 : x
  2. Step 2: Convert to fraction form
    13,599,959.06/18,768,280.05 = 7,405,345.37/x
  3. Step 3: Cross multiply
    13,599,959.06x = 18,768,280.05 × 7,405,345.37
  4. Step 4: Simplify right side
    13,599,959.06x = 138,985,595,677,289.48
  5. Step 5: Solve for x
    x = 138,985,595,677,289.48/13,599,959.06
  6. Step 6: Final answer
    x = 10,219,559.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.