Finding the Fourth Proportional to 136,207,031.24, 187,969,672.92 and 74,331,355.52
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Solution
The fourth proportional to 136,207,031.24, 187,969,672.92 and 74,331,355.52 is: 102,579,437.03
Step by Step Solution
- Step 1: Write the proportion equation
136,207,031.24 : 187,969,672.92 = 74,331,355.52 : x - Step 2: Convert to fraction form
136,207,031.24/187,969,672.92 = 74,331,355.52/x - Step 3: Cross multiply
136,207,031.24x = 187,969,672.92 × 74,331,355.52 - Step 4: Simplify right side
136,207,031.24x = 13,972,040,584,794,634 - Step 5: Solve for x
x = 13,972,040,584,794,634/136,207,031.24 - Step 6: Final answer
x = 102,579,437.03
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.