Home / 12,987,266.52-17,922,151.20-7,106,877.39

Finding the Fourth Proportional to 12,987,266.52, 17,922,151.20 and 7,106,877.39

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Solution

The fourth proportional to 12,987,266.52, 17,922,151.20 and 7,106,877.39 is: 9,807,339.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,987,266.52 : 17,922,151.20 = 7,106,877.39 : x
  2. Step 2: Convert to fraction form
    12,987,266.52/17,922,151.20 = 7,106,877.39/x
  3. Step 3: Cross multiply
    12,987,266.52x = 17,922,151.20 × 7,106,877.39
  4. Step 4: Simplify right side
    12,987,266.52x = 127,370,531,143,441.36
  5. Step 5: Solve for x
    x = 127,370,531,143,441.36/12,987,266.52
  6. Step 6: Final answer
    x = 9,807,339.44

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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.