Home / 7,207,112.40-9,945,816.12-3,943,927.86

Finding the Fourth Proportional to 7,207,112.40, 9,945,816.12 and 3,943,927.86

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Solution

The fourth proportional to 7,207,112.40, 9,945,816.12 and 3,943,927.86 is: 5,442,621.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,207,112.40 : 9,945,816.12 = 3,943,927.86 : x
  2. Step 2: Convert to fraction form
    7,207,112.40/9,945,816.12 = 3,943,927.86/x
  3. Step 3: Cross multiply
    7,207,112.40x = 9,945,816.12 × 3,943,927.86
  4. Step 4: Simplify right side
    7,207,112.40x = 39,225,581,286,105.10
  5. Step 5: Solve for x
    x = 39,225,581,286,105.10/7,207,112.40
  6. Step 6: Final answer
    x = 5,442,621.00

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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.