Home / 39,282,063.48-54,210,930.12-21,878,413.20

Finding the Fourth Proportional to 39,282,063.48, 54,210,930.12 and 21,878,413.20

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Solution

The fourth proportional to 39,282,063.48, 54,210,930.12 and 21,878,413.20 is: 30,193,147.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,282,063.48 : 54,210,930.12 = 21,878,413.20 : x
  2. Step 2: Convert to fraction form
    39,282,063.48/54,210,930.12 = 21,878,413.20/x
  3. Step 3: Cross multiply
    39,282,063.48x = 54,210,930.12 × 21,878,413.20
  4. Step 4: Simplify right side
    39,282,063.48x = 1,186,049,129,121,685.50
  5. Step 5: Solve for x
    x = 1,186,049,129,121,685.50/39,282,063.48
  6. Step 6: Final answer
    x = 30,193,147.31

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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.