Finding the Fourth Proportional to 19,625,416.20, 29,438,124.30 and 18,743,617.80
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Solution
The fourth proportional to 19,625,416.20, 29,438,124.30 and 18,743,617.80 is: 28,115,426.70
Step by Step Solution
- Step 1: Write the proportion equation
19,625,416.20 : 29,438,124.30 = 18,743,617.80 : x - Step 2: Convert to fraction form
19,625,416.20/29,438,124.30 = 18,743,617.80/x - Step 3: Cross multiply
19,625,416.20x = 29,438,124.30 × 18,743,617.80 - Step 4: Simplify right side
19,625,416.20x = 551,776,950,628,092.56 - Step 5: Solve for x
x = 551,776,950,628,092.56/19,625,416.20 - Step 6: Final answer
x = 28,115,426.70
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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.