Home / 18,720,534.09-28,042,114.77-11,020,452.30

Finding the Fourth Proportional to 18,720,534.09, 28,042,114.77 and 11,020,452.30

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Solution

The fourth proportional to 18,720,534.09, 28,042,114.77 and 11,020,452.30 is: 16,507,904.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720,534.09 : 28,042,114.77 = 11,020,452.30 : x
  2. Step 2: Convert to fraction form
    18,720,534.09/28,042,114.77 = 11,020,452.30/x
  3. Step 3: Cross multiply
    18,720,534.09x = 28,042,114.77 × 11,020,452.30
  4. Step 4: Simplify right side
    18,720,534.09x = 309,036,788,213,910.50
  5. Step 5: Solve for x
    x = 309,036,788,213,910.50/18,720,534.09
  6. Step 6: Final answer
    x = 16,507,904.46

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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.