Home / 12,794,521.20-17,656,413.68-7,287,893.94

Finding the Fourth Proportional to 12,794,521.20, 17,656,413.68 and 7,287,893.94

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Solution

The fourth proportional to 12,794,521.20, 17,656,413.68 and 7,287,893.94 is: 10,057,279.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,794,521.20 : 17,656,413.68 = 7,287,893.94 : x
  2. Step 2: Convert to fraction form
    12,794,521.20/17,656,413.68 = 7,287,893.94/x
  3. Step 3: Cross multiply
    12,794,521.20x = 17,656,413.68 × 7,287,893.94
  4. Step 4: Simplify right side
    12,794,521.20x = 128,678,070,345,036.39
  5. Step 5: Solve for x
    x = 128,678,070,345,036.39/12,794,521.20
  6. Step 6: Final answer
    x = 10,057,279.08

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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.