Finding the Fourth Proportional to 81,778,743.95, 112,855,387.39 and 44,609,189.36
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Solution
The fourth proportional to 81,778,743.95, 112,855,387.39 and 44,609,189.36 is: 61,561,074.47
Step by Step Solution
- Step 1: Write the proportion equation
81,778,743.95 : 112,855,387.39 = 44,609,189.36 : x - Step 2: Convert to fraction form
81,778,743.95/112,855,387.39 = 44,609,189.36/x - Step 3: Cross multiply
81,778,743.95x = 112,855,387.39 × 44,609,189.36 - Step 4: Simplify right side
81,778,743.95x = 5,034,387,345,700,866 - Step 5: Solve for x
x = 5,034,387,345,700,866/81,778,743.95 - Step 6: Final answer
x = 61,561,074.47
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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.