Home / 13,141,081.20-18,134,499.06-7,339,947.60

Finding the Fourth Proportional to 13,141,081.20, 18,134,499.06 and 7,339,947.60

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Solution

The fourth proportional to 13,141,081.20, 18,134,499.06 and 7,339,947.60 is: 10,129,019.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,141,081.20 : 18,134,499.06 = 7,339,947.60 : x
  2. Step 2: Convert to fraction form
    13,141,081.20/18,134,499.06 = 7,339,947.60/x
  3. Step 3: Cross multiply
    13,141,081.20x = 18,134,499.06 × 7,339,947.60
  4. Step 4: Simplify right side
    13,141,081.20x = 133,106,272,852,649.23
  5. Step 5: Solve for x
    x = 133,106,272,852,649.23/13,141,081.20
  6. Step 6: Final answer
    x = 10,129,019.89

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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.