Finding the Fourth Proportional to 28,434,101.18, 39,198,248.06 and 20,271,167.42
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Solution
The fourth proportional to 28,434,101.18, 39,198,248.06 and 20,271,167.42 is: 27,945,115.76
Step by Step Solution
- Step 1: Write the proportion equation
28,434,101.18 : 39,198,248.06 = 20,271,167.42 : x - Step 2: Convert to fraction form
28,434,101.18/39,198,248.06 = 20,271,167.42/x - Step 3: Cross multiply
28,434,101.18x = 39,198,248.06 × 20,271,167.42 - Step 4: Simplify right side
28,434,101.18x = 794,594,248,994,950.38 - Step 5: Solve for x
x = 794,594,248,994,950.38/28,434,101.18 - Step 6: Final answer
x = 27,945,115.76
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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.