Home / 22,767,876.04-31,420,413.68-12,978,142.60

Finding the Fourth Proportional to 22,767,876.04, 31,420,413.68 and 12,978,142.60

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Solution

The fourth proportional to 22,767,876.04, 31,420,413.68 and 12,978,142.60 is: 17,910,261.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,767,876.04 : 31,420,413.68 = 12,978,142.60 : x
  2. Step 2: Convert to fraction form
    22,767,876.04/31,420,413.68 = 12,978,142.60/x
  3. Step 3: Cross multiply
    22,767,876.04x = 31,420,413.68 × 12,978,142.60
  4. Step 4: Simplify right side
    22,767,876.04x = 407,778,609,290,030.75
  5. Step 5: Solve for x
    x = 407,778,609,290,030.75/22,767,876.04
  6. Step 6: Final answer
    x = 17,910,261.31

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1.5x scale

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.