Home / 12,778,990.22-17,635,091.91-6,977,812.34

Finding the Fourth Proportional to 12,778,990.22, 17,635,091.91 and 6,977,812.34

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Solution

The fourth proportional to 12,778,990.22, 17,635,091.91 and 6,977,812.34 is: 9,629,427.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778,990.22 : 17,635,091.91 = 6,977,812.34 : x
  2. Step 2: Convert to fraction form
    12,778,990.22/17,635,091.91 = 6,977,812.34/x
  3. Step 3: Cross multiply
    12,778,990.22x = 17,635,091.91 × 6,977,812.34
  4. Step 4: Simplify right side
    12,778,990.22x = 123,054,361,946,632.17
  5. Step 5: Solve for x
    x = 123,054,361,946,632.17/12,778,990.22
  6. Step 6: Final answer
    x = 9,629,427.66

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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.