Home / 20,713,413.69-28,596,757.91-18,415,214.31

Finding the Fourth Proportional to 20,713,413.69, 28,596,757.91 and 18,415,214.31

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Solution

The fourth proportional to 20,713,413.69, 28,596,757.91 and 18,415,214.31 is: 25,423,883.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713,413.69 : 28,596,757.91 = 18,415,214.31 : x
  2. Step 2: Convert to fraction form
    20,713,413.69/28,596,757.91 = 18,415,214.31/x
  3. Step 3: Cross multiply
    20,713,413.69x = 28,596,757.91 × 18,415,214.31
  4. Step 4: Simplify right side
    20,713,413.69x = 526,615,425,483,837.69
  5. Step 5: Solve for x
    x = 526,615,425,483,837.69/20,713,413.69
  6. Step 6: Final answer
    x = 25,423,883.93

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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.