Home / 9,986,619.12-13,795,643.16-7,946,818.80

Finding the Fourth Proportional to 9,986,619.12, 13,795,643.16 and 7,946,818.80

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Solution

The fourth proportional to 9,986,619.12, 13,795,643.16 and 7,946,818.80 is: 10,977,836.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986,619.12 : 13,795,643.16 = 7,946,818.80 : x
  2. Step 2: Convert to fraction form
    9,986,619.12/13,795,643.16 = 7,946,818.80/x
  3. Step 3: Cross multiply
    9,986,619.12x = 13,795,643.16 × 7,946,818.80
  4. Step 4: Simplify right side
    9,986,619.12x = 109,631,476,421,979.41
  5. Step 5: Solve for x
    x = 109,631,476,421,979.41/9,986,619.12
  6. Step 6: Final answer
    x = 10,977,836.95

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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.