Home / 12,919,069.08-17,828,636.39-7,955,631.58

Finding the Fourth Proportional to 12,919,069.08, 17,828,636.39 and 7,955,631.58

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Solution

The fourth proportional to 12,919,069.08, 17,828,636.39 and 7,955,631.58 is: 10,978,969.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919,069.08 : 17,828,636.39 = 7,955,631.58 : x
  2. Step 2: Convert to fraction form
    12,919,069.08/17,828,636.39 = 7,955,631.58/x
  3. Step 3: Cross multiply
    12,919,069.08x = 17,828,636.39 × 7,955,631.58
  4. Step 4: Simplify right side
    12,919,069.08x = 141,838,062,692,621.19
  5. Step 5: Solve for x
    x = 141,838,062,692,621.19/12,919,069.08
  6. Step 6: Final answer
    x = 10,978,969.29

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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.