Finding the Fourth Proportional to 71,161,943.49, 106,620,938.94 and 47,774,884.77
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Solution
The fourth proportional to 71,161,943.49, 106,620,938.94 and 47,774,884.77 is: 71,580,437.83
Step by Step Solution
- Step 1: Write the proportion equation
71,161,943.49 : 106,620,938.94 = 47,774,884.77 : x - Step 2: Convert to fraction form
71,161,943.49/106,620,938.94 = 47,774,884.77/x - Step 3: Cross multiply
71,161,943.49x = 106,620,938.94 × 47,774,884.77 - Step 4: Simplify right side
71,161,943.49x = 5,093,803,071,927,706 - Step 5: Solve for x
x = 5,093,803,071,927,706/71,161,943.49 - Step 6: Final answer
x = 71,580,437.83
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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.