Finding the Fourth Proportional to 86,323,915.69, 129,549,646.49 and 40,885,710.19
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Solution
The fourth proportional to 86,323,915.69, 129,549,646.49 and 40,885,710.19 is: 61,358,770.15
Step by Step Solution
- Step 1: Write the proportion equation
86,323,915.69 : 129,549,646.49 = 40,885,710.19 : x - Step 2: Convert to fraction form
86,323,915.69/129,549,646.49 = 40,885,710.19/x - Step 3: Cross multiply
86,323,915.69x = 129,549,646.49 × 40,885,710.19 - Step 4: Simplify right side
86,323,915.69x = 5,296,729,301,078,788 - Step 5: Solve for x
x = 5,296,729,301,078,788/86,323,915.69 - Step 6: Final answer
x = 61,358,770.15
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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.