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Finding the Fourth Proportional to 9,360,745.20, 13,133,386.80 and 9,360,745.20

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Solution

The fourth proportional to 9,360,745.20, 13,133,386.80 and 9,360,745.20 is: 13,133,386.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,360,745.20 : 13,133,386.80 = 9,360,745.20 : x
  2. Step 2: Convert to fraction form
    9,360,745.20/13,133,386.80 = 9,360,745.20/x
  3. Step 3: Cross multiply
    9,360,745.20x = 13,133,386.80 × 9,360,745.20
  4. Step 4: Simplify right side
    9,360,745.20x = 122,938,287,447,843.36
  5. Step 5: Solve for x
    x = 122,938,287,447,843.36/9,360,745.20
  6. Step 6: Final answer
    x = 13,133,386.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.