Finding the Fourth Proportional to 81,878,856.02, 112,993,367.57 and 44,709,394.38
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Solution
The fourth proportional to 81,878,856.02, 112,993,367.57 and 44,709,394.38 is: 61,699,262.53
Step by Step Solution
- Step 1: Write the proportion equation
81,878,856.02 : 112,993,367.57 = 44,709,394.38 : x - Step 2: Convert to fraction form
81,878,856.02/112,993,367.57 = 44,709,394.38/x - Step 3: Cross multiply
81,878,856.02x = 112,993,367.57 × 44,709,394.38 - Step 4: Simplify right side
81,878,856.02x = 5,051,865,033,293,154 - Step 5: Solve for x
x = 5,051,865,033,293,154/81,878,856.02 - Step 6: Final answer
x = 61,699,262.53
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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.