Home / 20,885,640.66-31,328,334.63-11,361,547.26

Finding the Fourth Proportional to 20,885,640.66, 31,328,334.63 and 11,361,547.26

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Solution

The fourth proportional to 20,885,640.66, 31,328,334.63 and 11,361,547.26 is: 17,042,252.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885,640.66 : 31,328,334.63 = 11,361,547.26 : x
  2. Step 2: Convert to fraction form
    20,885,640.66/31,328,334.63 = 11,361,547.26/x
  3. Step 3: Cross multiply
    20,885,640.66x = 31,328,334.63 × 11,361,547.26
  4. Step 4: Simplify right side
    20,885,640.66x = 355,938,354,475,839.62
  5. Step 5: Solve for x
    x = 355,938,354,475,839.62/20,885,640.66
  6. Step 6: Final answer
    x = 17,042,252.15

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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.