Home / 28,371,091.20-42,556,636.80-19,413,139.20

Finding the Fourth Proportional to 28,371,091.20, 42,556,636.80 and 19,413,139.20

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Solution

The fourth proportional to 28,371,091.20, 42,556,636.80 and 19,413,139.20 is: 29,119,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371,091.20 : 42,556,636.80 = 19,413,139.20 : x
  2. Step 2: Convert to fraction form
    28,371,091.20/42,556,636.80 = 19,413,139.20/x
  3. Step 3: Cross multiply
    28,371,091.20x = 42,556,636.80 × 19,413,139.20
  4. Step 4: Simplify right side
    28,371,091.20x = 826,157,914,082,242.50
  5. Step 5: Solve for x
    x = 826,157,914,082,242.50/28,371,091.20
  6. Step 6: Final answer
    x = 29,119,708.80

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