Finding the Fourth Proportional to 19,879,811.40, 29,777,726.70 and 19,879,811.40
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Solution
The fourth proportional to 19,879,811.40, 29,777,726.70 and 19,879,811.40 is: 29,777,726.70
Step by Step Solution
- Step 1: Write the proportion equation
19,879,811.40 : 29,777,726.70 = 19,879,811.40 : x - Step 2: Convert to fraction form
19,879,811.40/29,777,726.70 = 19,879,811.40/x - Step 3: Cross multiply
19,879,811.40x = 29,777,726.70 × 19,879,811.40 - Step 4: Simplify right side
19,879,811.40x = 591,975,590,716,744.38 - Step 5: Solve for x
x = 591,975,590,716,744.38/19,879,811.40 - Step 6: Final answer
x = 29,777,726.70
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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.