Finding the Fourth Proportional to 127,112,647.68, 175,433,321.88 and 74,206,707.12
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Solution
The fourth proportional to 127,112,647.68, 175,433,321.88 and 74,206,707.12 is: 102,415,686.98
Step by Step Solution
- Step 1: Write the proportion equation
127,112,647.68 : 175,433,321.88 = 74,206,707.12 : x - Step 2: Convert to fraction form
127,112,647.68/175,433,321.88 = 74,206,707.12/x - Step 3: Cross multiply
127,112,647.68x = 175,433,321.88 × 74,206,707.12 - Step 4: Simplify right side
127,112,647.68x = 13,018,329,135,837,848 - Step 5: Solve for x
x = 13,018,329,135,837,848/127,112,647.68 - Step 6: Final answer
x = 102,415,686.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.