Home / 9,912,173.79-13,678,584.61-5,725,862.13

Finding the Fourth Proportional to 9,912,173.79, 13,678,584.61 and 5,725,862.13

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Solution

The fourth proportional to 9,912,173.79, 13,678,584.61 and 5,725,862.13 is: 7,901,565.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912,173.79 : 13,678,584.61 = 5,725,862.13 : x
  2. Step 2: Convert to fraction form
    9,912,173.79/13,678,584.61 = 5,725,862.13/x
  3. Step 3: Cross multiply
    9,912,173.79x = 13,678,584.61 × 5,725,862.13
  4. Step 4: Simplify right side
    9,912,173.79x = 78,321,689,610,399.81
  5. Step 5: Solve for x
    x = 78,321,689,610,399.81/9,912,173.79
  6. Step 6: Final answer
    x = 7,901,565.42

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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.