Home / 144,644,339.52-199,610,654.67-78,566,130.36

Finding the Fourth Proportional to 144,644,339.52, 199,610,654.67 and 78,566,130.36

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Solution

The fourth proportional to 144,644,339.52, 199,610,654.67 and 78,566,130.36 is: 108,422,056.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,644,339.52 : 199,610,654.67 = 78,566,130.36 : x
  2. Step 2: Convert to fraction form
    144,644,339.52/199,610,654.67 = 78,566,130.36/x
  3. Step 3: Cross multiply
    144,644,339.52x = 199,610,654.67 × 78,566,130.36
  4. Step 4: Simplify right side
    144,644,339.52x = 15,682,636,716,048,162
  5. Step 5: Solve for x
    x = 15,682,636,716,048,162/144,644,339.52
  6. Step 6: Final answer
    x = 108,422,056.25

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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.