Finding the Fourth Proportional to 86,733,468.72, 129,926,730.21 and 52,170,791.40
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Solution
The fourth proportional to 86,733,468.72, 129,926,730.21 and 52,170,791.40 is: 78,151,841.95
Step by Step Solution
- Step 1: Write the proportion equation
86,733,468.72 : 129,926,730.21 = 52,170,791.40 : x - Step 2: Convert to fraction form
86,733,468.72/129,926,730.21 = 52,170,791.40/x - Step 3: Cross multiply
86,733,468.72x = 129,926,730.21 × 52,170,791.40 - Step 4: Simplify right side
86,733,468.72x = 6,778,380,339,069,988 - Step 5: Solve for x
x = 6,778,380,339,069,988/86,733,468.72 - Step 6: Final answer
x = 78,151,841.95
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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.