Home / 7,182,806.65-9,912,482.50-3,919,831.55

Finding the Fourth Proportional to 7,182,806.65, 9,912,482.50 and 3,919,831.55

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Solution

The fourth proportional to 7,182,806.65, 9,912,482.50 and 3,919,831.55 is: 5,409,481.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182,806.65 : 9,912,482.50 = 3,919,831.55 : x
  2. Step 2: Convert to fraction form
    7,182,806.65/9,912,482.50 = 3,919,831.55/x
  3. Step 3: Cross multiply
    7,182,806.65x = 9,912,482.50 × 3,919,831.55
  4. Step 4: Simplify right side
    7,182,806.65x = 38,855,261,582,960.88
  5. Step 5: Solve for x
    x = 38,855,261,582,960.88/7,182,806.65
  6. Step 6: Final answer
    x = 5,409,481.77

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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.