Home / 13,520,988.85-18,658,971.85-7,326,040.54

Finding the Fourth Proportional to 13,520,988.85, 18,658,971.85 and 7,326,040.54

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Solution

The fourth proportional to 13,520,988.85, 18,658,971.85 and 7,326,040.54 is: 10,109,939.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520,988.85 : 18,658,971.85 = 7,326,040.54 : x
  2. Step 2: Convert to fraction form
    13,520,988.85/18,658,971.85 = 7,326,040.54/x
  3. Step 3: Cross multiply
    13,520,988.85x = 18,658,971.85 × 7,326,040.54
  4. Step 4: Simplify right side
    13,520,988.85x = 136,696,384,116,852.50
  5. Step 5: Solve for x
    x = 136,696,384,116,852.50/13,520,988.85
  6. Step 6: Final answer
    x = 10,109,939.86

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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.