Home / 12,819,564.21-17,691,002.70-7,018,714.29

Finding the Fourth Proportional to 12,819,564.21, 17,691,002.70 and 7,018,714.29

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Solution

The fourth proportional to 12,819,564.21, 17,691,002.70 and 7,018,714.29 is: 9,685,827.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819,564.21 : 17,691,002.70 = 7,018,714.29 : x
  2. Step 2: Convert to fraction form
    12,819,564.21/17,691,002.70 = 7,018,714.29/x
  3. Step 3: Cross multiply
    12,819,564.21x = 17,691,002.70 × 7,018,714.29
  4. Step 4: Simplify right side
    12,819,564.21x = 124,168,093,454,918.58
  5. Step 5: Solve for x
    x = 124,168,093,454,918.58/12,819,564.21
  6. Step 6: Final answer
    x = 9,685,827.96

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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.