Home / 7,182,690.86-9,912,323.71-3,919,715.84

Finding the Fourth Proportional to 7,182,690.86, 9,912,323.71 and 3,919,715.84

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Solution

The fourth proportional to 7,182,690.86, 9,912,323.71 and 3,919,715.84 is: 5,409,322.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182,690.86 : 9,912,323.71 = 3,919,715.84 : x
  2. Step 2: Convert to fraction form
    7,182,690.86/9,912,323.71 = 3,919,715.84/x
  3. Step 3: Cross multiply
    7,182,690.86x = 9,912,323.71 × 3,919,715.84
  4. Step 4: Simplify right side
    7,182,690.86x = 38,853,492,286,975.02
  5. Step 5: Solve for x
    x = 38,853,492,286,975.02/7,182,690.86
  6. Step 6: Final answer
    x = 5,409,322.64

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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.