Finding the Fourth Proportional to 10,203,908.58, 14,081,393.34 and 5,620,230.18
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Solution
The fourth proportional to 10,203,908.58, 14,081,393.34 and 5,620,230.18 is: 7,755,917.37
Step by Step Solution
- Step 1: Write the proportion equation
10,203,908.58 : 14,081,393.34 = 5,620,230.18 : x - Step 2: Convert to fraction form
10,203,908.58/14,081,393.34 = 5,620,230.18/x - Step 3: Cross multiply
10,203,908.58x = 14,081,393.34 × 5,620,230.18 - Step 4: Simplify right side
10,203,908.58x = 79,140,671,825,919 - Step 5: Solve for x
x = 79,140,671,825,919/10,203,908.58 - Step 6: Final answer
x = 7,755,917.37
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1.5x scale
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.