Finding the Fourth Proportional to 19,681,488.20, 29,520,239.02 and 5,306,009.15
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Solution
The fourth proportional to 19,681,488.20, 29,520,239.02 and 5,306,009.15 is: 7,958,476.35
Step by Step Solution
- Step 1: Write the proportion equation
19,681,488.20 : 29,520,239.02 = 5,306,009.15 : x - Step 2: Convert to fraction form
19,681,488.20/29,520,239.02 = 5,306,009.15/x - Step 3: Cross multiply
19,681,488.20x = 29,520,239.02 × 5,306,009.15 - Step 4: Simplify right side
19,681,488.20x = 156,634,658,350,307.03 - Step 5: Solve for x
x = 156,634,658,350,307.03/19,681,488.20 - Step 6: Final answer
x = 7,958,476.35
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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.