Home / 12,326,999.85-18,490,499.78-11,972,705.85

Finding the Fourth Proportional to 12,326,999.85, 18,490,499.78 and 11,972,705.85

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Solution

The fourth proportional to 12,326,999.85, 18,490,499.78 and 11,972,705.85 is: 17,959,058.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,326,999.85 : 18,490,499.78 = 11,972,705.85 : x
  2. Step 2: Convert to fraction form
    12,326,999.85/18,490,499.78 = 11,972,705.85/x
  3. Step 3: Cross multiply
    12,326,999.85x = 18,490,499.78 × 11,972,705.85
  4. Step 4: Simplify right side
    12,326,999.85x = 221,381,314,825,566.16
  5. Step 5: Solve for x
    x = 221,381,314,825,566.16/12,326,999.85
  6. Step 6: Final answer
    x = 17,959,058.78

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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.