Finding the Fourth Proportional to 76,987,394.36, 115,481,328.48 and 19,479,653.48
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Solution
The fourth proportional to 76,987,394.36, 115,481,328.48 and 19,479,653.48 is: 29,219,540.17
Step by Step Solution
- Step 1: Write the proportion equation
76,987,394.36 : 115,481,328.48 = 19,479,653.48 : x - Step 2: Convert to fraction form
76,987,394.36/115,481,328.48 = 19,479,653.48/x - Step 3: Cross multiply
76,987,394.36x = 115,481,328.48 × 19,479,653.48 - Step 4: Simplify right side
76,987,394.36x = 2,249,536,262,200,455.25 - Step 5: Solve for x
x = 2,249,536,262,200,455.25/76,987,394.36 - Step 6: Final answer
x = 29,219,540.17
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.