Finding the Fourth Proportional to 278,865,263.13, 417,490,122.18 and 210,067,808.37
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Solution
The fourth proportional to 278,865,263.13, 417,490,122.18 and 210,067,808.37 is: 314,493,221.56
Step by Step Solution
- Step 1: Write the proportion equation
278,865,263.13 : 417,490,122.18 = 210,067,808.37 : x - Step 2: Convert to fraction form
278,865,263.13/417,490,122.18 = 210,067,808.37/x - Step 3: Cross multiply
278,865,263.13x = 417,490,122.18 × 210,067,808.37 - Step 4: Simplify right side
278,865,263.13x = 87,701,234,982,476,128 - Step 5: Solve for x
x = 87,701,234,982,476,128/278,865,263.13 - Step 6: Final answer
x = 314,493,221.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.