Finding the Fourth Proportional to 42,103,989.79, 58,081,742.43 and 26,643,043.09
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Solution
The fourth proportional to 42,103,989.79, 58,081,742.43 and 26,643,043.09 is: 36,753,627.72
Step by Step Solution
- Step 1: Write the proportion equation
42,103,989.79 : 58,081,742.43 = 26,643,043.09 : x - Step 2: Convert to fraction form
42,103,989.79/58,081,742.43 = 26,643,043.09/x - Step 3: Cross multiply
42,103,989.79x = 58,081,742.43 × 26,643,043.09 - Step 4: Simplify right side
42,103,989.79x = 1,547,474,366,304,771.25 - Step 5: Solve for x
x = 1,547,474,366,304,771.25/42,103,989.79 - Step 6: Final answer
x = 36,753,627.72
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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.