Finding the Fourth Proportional to 38,454,509.30, 53,067,218.85 and 20,813,408.80
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Solution
The fourth proportional to 38,454,509.30, 53,067,218.85 and 20,813,408.80 is: 28,722,501.99
Step by Step Solution
- Step 1: Write the proportion equation
38,454,509.30 : 53,067,218.85 = 20,813,408.80 : x - Step 2: Convert to fraction form
38,454,509.30/53,067,218.85 = 20,813,408.80/x - Step 3: Cross multiply
38,454,509.30x = 53,067,218.85 × 20,813,408.80 - Step 4: Simplify right side
38,454,509.30x = 1,104,509,719,671,447.88 - Step 5: Solve for x
x = 1,104,509,719,671,447.88/38,454,509.30 - Step 6: Final answer
x = 28,722,501.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.