Finding the Fourth Proportional to 19,931,855.80, 29,897,783.70 and 10,838,309.80
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Solution
The fourth proportional to 19,931,855.80, 29,897,783.70 and 10,838,309.80 is: 16,257,464.70
Step by Step Solution
- Step 1: Write the proportion equation
19,931,855.80 : 29,897,783.70 = 10,838,309.80 : x - Step 2: Convert to fraction form
19,931,855.80/29,897,783.70 = 10,838,309.80/x - Step 3: Cross multiply
19,931,855.80x = 29,897,783.70 × 10,838,309.80 - Step 4: Simplify right side
19,931,855.80x = 324,041,442,073,990.25 - Step 5: Solve for x
x = 324,041,442,073,990.25/19,931,855.80 - Step 6: Final answer
x = 16,257,464.70
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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.