Home / 28,190,922.60-42,286,383.90-19,687,866.60

Finding the Fourth Proportional to 28,190,922.60, 42,286,383.90 and 19,687,866.60

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Solution

The fourth proportional to 28,190,922.60, 42,286,383.90 and 19,687,866.60 is: 29,531,799.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190,922.60 : 42,286,383.90 = 19,687,866.60 : x
  2. Step 2: Convert to fraction form
    28,190,922.60/42,286,383.90 = 19,687,866.60/x
  3. Step 3: Cross multiply
    28,190,922.60x = 42,286,383.90 × 19,687,866.60
  4. Step 4: Simplify right side
    28,190,922.60x = 832,528,685,219,587.75
  5. Step 5: Solve for x
    x = 832,528,685,219,587.75/28,190,922.60
  6. Step 6: Final answer
    x = 29,531,799.90

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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.