Home / 12,646,021.36-18,969,045.72-5,919,159.28

Finding the Fourth Proportional to 12,646,021.36, 18,969,045.72 and 5,919,159.28

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Solution

The fourth proportional to 12,646,021.36, 18,969,045.72 and 5,919,159.28 is: 8,878,745.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646,021.36 : 18,969,045.72 = 5,919,159.28 : x
  2. Step 2: Convert to fraction form
    12,646,021.36/18,969,045.72 = 5,919,159.28/x
  3. Step 3: Cross multiply
    12,646,021.36x = 18,969,045.72 × 5,919,159.28
  4. Step 4: Simplify right side
    12,646,021.36x = 112,280,803,006,282.28
  5. Step 5: Solve for x
    x = 112,280,803,006,282.28/12,646,021.36
  6. Step 6: Final answer
    x = 8,878,745.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.