Home / 19,917,999.40-29,876,999.10-19,792,028.20

Finding the Fourth Proportional to 19,917,999.40, 29,876,999.10 and 19,792,028.20

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Solution

The fourth proportional to 19,917,999.40, 29,876,999.10 and 19,792,028.20 is: 29,688,042.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917,999.40 : 29,876,999.10 = 19,792,028.20 : x
  2. Step 2: Convert to fraction form
    19,917,999.40/29,876,999.10 = 19,792,028.20/x
  3. Step 3: Cross multiply
    19,917,999.40x = 29,876,999.10 × 19,792,028.20
  4. Step 4: Simplify right side
    19,917,999.40x = 591,326,408,718,574.62
  5. Step 5: Solve for x
    x = 591,326,408,718,574.62/19,917,999.40
  6. Step 6: Final answer
    x = 29,688,042.30

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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.