Home / 18,841,638.80-28,262,458.20-9,275,700.80

Finding the Fourth Proportional to 18,841,638.80, 28,262,458.20 and 9,275,700.80

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Solution

The fourth proportional to 18,841,638.80, 28,262,458.20 and 9,275,700.80 is: 13,913,551.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,841,638.80 : 28,262,458.20 = 9,275,700.80 : x
  2. Step 2: Convert to fraction form
    18,841,638.80/28,262,458.20 = 9,275,700.80/x
  3. Step 3: Cross multiply
    18,841,638.80x = 28,262,458.20 × 9,275,700.80
  4. Step 4: Simplify right side
    18,841,638.80x = 262,154,106,135,706.56
  5. Step 5: Solve for x
    x = 262,154,106,135,706.56/18,841,638.80
  6. Step 6: Final answer
    x = 13,913,551.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.