Finding the Fourth Proportional to 19,991,160.12, 29,986,740.70 and 4,845,091.62
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Solution
The fourth proportional to 19,991,160.12, 29,986,740.70 and 4,845,091.62 is: 7,267,637.55
Step by Step Solution
- Step 1: Write the proportion equation
19,991,160.12 : 29,986,740.70 = 4,845,091.62 : x - Step 2: Convert to fraction form
19,991,160.12/29,986,740.70 = 4,845,091.62/x - Step 3: Cross multiply
19,991,160.12x = 29,986,740.70 × 4,845,091.62 - Step 4: Simplify right side
19,991,160.12x = 145,288,506,052,457.47 - Step 5: Solve for x
x = 145,288,506,052,457.47/19,991,160.12 - Step 6: Final answer
x = 7,267,637.55
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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.