Home / 13,686,673.14-18,886,329.36-8,178,955.02

Finding the Fourth Proportional to 13,686,673.14, 18,886,329.36 and 8,178,955.02

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Solution

The fourth proportional to 13,686,673.14, 18,886,329.36 and 8,178,955.02 is: 11,286,193.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,686,673.14 : 18,886,329.36 = 8,178,955.02 : x
  2. Step 2: Convert to fraction form
    13,686,673.14/18,886,329.36 = 8,178,955.02/x
  3. Step 3: Cross multiply
    13,686,673.14x = 18,886,329.36 × 8,178,955.02
  4. Step 4: Simplify right side
    13,686,673.14x = 154,470,438,328,345.38
  5. Step 5: Solve for x
    x = 154,470,438,328,345.38/13,686,673.14
  6. Step 6: Final answer
    x = 11,286,193.27

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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.