Finding the Fourth Proportional to 39,919,429.44, 55,088,851.68 and 21,584,710.08
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Solution
The fourth proportional to 39,919,429.44, 55,088,851.68 and 21,584,710.08 is: 29,786,921.03
Step by Step Solution
- Step 1: Write the proportion equation
39,919,429.44 : 55,088,851.68 = 21,584,710.08 : x - Step 2: Convert to fraction form
39,919,429.44/55,088,851.68 = 21,584,710.08/x - Step 3: Cross multiply
39,919,429.44x = 55,088,851.68 × 21,584,710.08 - Step 4: Simplify right side
39,919,429.44x = 1,189,076,892,152,920.75 - Step 5: Solve for x
x = 1,189,076,892,152,920.75/39,919,429.44 - Step 6: Final answer
x = 29,786,921.03
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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.