Home / 28,976,021.40-43,464,032.10-18,772,354.20

Finding the Fourth Proportional to 28,976,021.40, 43,464,032.10 and 18,772,354.20

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Solution

The fourth proportional to 28,976,021.40, 43,464,032.10 and 18,772,354.20 is: 28,158,531.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,976,021.40 : 43,464,032.10 = 18,772,354.20 : x
  2. Step 2: Convert to fraction form
    28,976,021.40/43,464,032.10 = 18,772,354.20/x
  3. Step 3: Cross multiply
    28,976,021.40x = 43,464,032.10 × 18,772,354.20
  4. Step 4: Simplify right side
    28,976,021.40x = 815,922,205,541,369.88
  5. Step 5: Solve for x
    x = 815,922,205,541,369.88/28,976,021.40
  6. Step 6: Final answer
    x = 28,158,531.30

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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.