Finding the Fourth Proportional to 19,991,291.44, 29,986,937.14 and 4,845,222.94
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Solution
The fourth proportional to 19,991,291.44, 29,986,937.14 and 4,845,222.94 is: 7,267,834.41
Step by Step Solution
- Step 1: Write the proportion equation
19,991,291.44 : 29,986,937.14 = 4,845,222.94 : x - Step 2: Convert to fraction form
19,991,291.44/29,986,937.14 = 4,845,222.94/x - Step 3: Cross multiply
19,991,291.44x = 29,986,937.14 × 4,845,222.94 - Step 4: Simplify right side
19,991,291.44x = 145,293,395,731,066 - Step 5: Solve for x
x = 145,293,395,731,066/19,991,291.44 - Step 6: Final answer
x = 7,267,834.41
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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.