Finding the Fourth Proportional to 10,753,043.40, 16,129,565.10 and 7,346,809.80
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Solution
The fourth proportional to 10,753,043.40, 16,129,565.10 and 7,346,809.80 is: 11,020,214.70
Step by Step Solution
- Step 1: Write the proportion equation
10,753,043.40 : 16,129,565.10 = 7,346,809.80 : x - Step 2: Convert to fraction form
10,753,043.40/16,129,565.10 = 7,346,809.80/x - Step 3: Cross multiply
10,753,043.40x = 16,129,565.10 × 7,346,809.80 - Step 4: Simplify right side
10,753,043.40x = 118,500,846,946,417.97 - Step 5: Solve for x
x = 118,500,846,946,417.97/10,753,043.40 - Step 6: Final answer
x = 11,020,214.70
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1.5x scale
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.