Home / 13,009,979.76-17,953,754.46-7,209,137.16

Finding the Fourth Proportional to 13,009,979.76, 17,953,754.46 and 7,209,137.16

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Solution

The fourth proportional to 13,009,979.76, 17,953,754.46 and 7,209,137.16 is: 9,948,599.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009,979.76 : 17,953,754.46 = 7,209,137.16 : x
  2. Step 2: Convert to fraction form
    13,009,979.76/17,953,754.46 = 7,209,137.16/x
  3. Step 3: Cross multiply
    13,009,979.76x = 17,953,754.46 × 7,209,137.16
  4. Step 4: Simplify right side
    13,009,979.76x = 129,431,078,439,101.75
  5. Step 5: Solve for x
    x = 129,431,078,439,101.75/13,009,979.76
  6. Step 6: Final answer
    x = 9,948,599.52

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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.