Finding the Fourth Proportional to 19,991,295.43, 29,986,943.16 and 4,845,226.93
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Solution
The fourth proportional to 19,991,295.43, 29,986,943.16 and 4,845,226.93 is: 7,267,840.40
Step by Step Solution
- Step 1: Write the proportion equation
19,991,295.43 : 29,986,943.16 = 4,845,226.93 : x - Step 2: Convert to fraction form
19,991,295.43/29,986,943.16 = 4,845,226.93/x - Step 3: Cross multiply
19,991,295.43x = 29,986,943.16 × 4,845,226.93 - Step 4: Simplify right side
19,991,295.43x = 145,293,544,547,211.28 - Step 5: Solve for x
x = 145,293,544,547,211.28/19,991,295.43 - Step 6: Final answer
x = 7,267,840.40
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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.