Finding the Fourth Proportional to 86,323,916.69, 129,549,647.99 and 40,885,711.19
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Solution
The fourth proportional to 86,323,916.69, 129,549,647.99 and 40,885,711.19 is: 61,358,771.65
Step by Step Solution
- Step 1: Write the proportion equation
86,323,916.69 : 129,549,647.99 = 40,885,711.19 : x - Step 2: Convert to fraction form
86,323,916.69/129,549,647.99 = 40,885,711.19/x - Step 3: Cross multiply
86,323,916.69x = 129,549,647.99 × 40,885,711.19 - Step 4: Simplify right side
86,323,916.69x = 5,296,729,492,485,303 - Step 5: Solve for x
x = 5,296,729,492,485,303/86,323,916.69 - Step 6: Final answer
x = 61,358,771.65
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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.