Home / 15,200,100.77-20,977,636.57-8,674,712.42

Finding the Fourth Proportional to 15,200,100.77, 20,977,636.57 and 8,674,712.42

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Solution

The fourth proportional to 15,200,100.77, 20,977,636.57 and 8,674,712.42 is: 11,971,957.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,200,100.77 : 20,977,636.57 = 8,674,712.42 : x
  2. Step 2: Convert to fraction form
    15,200,100.77/20,977,636.57 = 8,674,712.42/x
  3. Step 3: Cross multiply
    15,200,100.77x = 20,977,636.57 × 8,674,712.42
  4. Step 4: Simplify right side
    15,200,100.77x = 181,974,964,369,450.22
  5. Step 5: Solve for x
    x = 181,974,964,369,450.22/15,200,100.77
  6. Step 6: Final answer
    x = 11,971,957.76

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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.