Finding the Fourth Proportional to 78,474,031.98, 117,603,431.17 and 49,668,748.80
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Solution
The fourth proportional to 78,474,031.98, 117,603,431.17 and 49,668,748.80 is: 74,435,009.05
Step by Step Solution
- Step 1: Write the proportion equation
78,474,031.98 : 117,603,431.17 = 49,668,748.80 : x - Step 2: Convert to fraction form
78,474,031.98/117,603,431.17 = 49,668,748.80/x - Step 3: Cross multiply
78,474,031.98x = 117,603,431.17 × 49,668,748.80 - Step 4: Simplify right side
78,474,031.98x = 5,841,215,280,897,273 - Step 5: Solve for x
x = 5,841,215,280,897,273/78,474,031.98 - Step 6: Final answer
x = 74,435,009.05
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.