Finding the Fourth Proportional to 39,875,817.42, 55,027,267.65 and 21,994,746.48
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Solution
The fourth proportional to 39,875,817.42, 55,027,267.65 and 21,994,746.48 is: 30,351,999.78
Step by Step Solution
- Step 1: Write the proportion equation
39,875,817.42 : 55,027,267.65 = 21,994,746.48 : x - Step 2: Convert to fraction form
39,875,817.42/55,027,267.65 = 21,994,746.48/x - Step 3: Cross multiply
39,875,817.42x = 55,027,267.65 × 21,994,746.48 - Step 4: Simplify right side
39,875,817.42x = 1,210,310,801,448,855.25 - Step 5: Solve for x
x = 1,210,310,801,448,855.25/39,875,817.42 - Step 6: Final answer
x = 30,351,999.78
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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.