Home / 12,778,896.16-17,634,806.38-6,977,636.68

Finding the Fourth Proportional to 12,778,896.16, 17,634,806.38 and 6,977,636.68

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Solution

The fourth proportional to 12,778,896.16, 17,634,806.38 and 6,977,636.68 is: 9,629,100.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778,896.16 : 17,634,806.38 = 6,977,636.68 : x
  2. Step 2: Convert to fraction form
    12,778,896.16/17,634,806.38 = 6,977,636.68/x
  3. Step 3: Cross multiply
    12,778,896.16x = 17,634,806.38 × 6,977,636.68
  4. Step 4: Simplify right side
    12,778,896.16x = 123,049,271,841,786
  5. Step 5: Solve for x
    x = 123,049,271,841,786/12,778,896.16
  6. Step 6: Final answer
    x = 9,629,100.22

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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.