Home / 20,611,799.48-28,447,782-11,915,013.62

Finding the Fourth Proportional to 20,611,799.48, 28,447,782 and 11,915,013.62

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Solution

The fourth proportional to 20,611,799.48, 28,447,782 and 11,915,013.62 is: 16,444,741.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,611,799.48 : 28,447,782 = 11,915,013.62 : x
  2. Step 2: Convert to fraction form
    20,611,799.48/28,447,782 = 11,915,013.62/x
  3. Step 3: Cross multiply
    20,611,799.48x = 28,447,782 × 11,915,013.62
  4. Step 4: Simplify right side
    20,611,799.48x = 338,955,709,988,790.81
  5. Step 5: Solve for x
    x = 338,955,709,988,790.81/20,611,799.48
  6. Step 6: Final answer
    x = 16,444,741.29

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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.