Home / 28,007,580.33-42,012,683.77-13,613,490.09

Finding the Fourth Proportional to 28,007,580.33, 42,012,683.77 and 13,613,490.09

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Solution

The fourth proportional to 28,007,580.33, 42,012,683.77 and 13,613,490.09 is: 20,420,873.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,007,580.33 : 42,012,683.77 = 13,613,490.09 : x
  2. Step 2: Convert to fraction form
    28,007,580.33/42,012,683.77 = 13,613,490.09/x
  3. Step 3: Cross multiply
    28,007,580.33x = 42,012,683.77 × 13,613,490.09
  4. Step 4: Simplify right side
    28,007,580.33x = 571,939,254,157,198.88
  5. Step 5: Solve for x
    x = 571,939,254,157,198.88/28,007,580.33
  6. Step 6: Final answer
    x = 20,420,873.47

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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.