Finding the Fourth Proportional to 155,408,841.61, 214,458,579.12 and 85,792,727.68
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Solution
The fourth proportional to 155,408,841.61, 214,458,579.12 and 85,792,727.68 is: 118,390,860.43
Step by Step Solution
- Step 1: Write the proportion equation
155,408,841.61 : 214,458,579.12 = 85,792,727.68 : x - Step 2: Convert to fraction form
155,408,841.61/214,458,579.12 = 85,792,727.68/x - Step 3: Cross multiply
155,408,841.61x = 214,458,579.12 × 85,792,727.68 - Step 4: Simplify right side
155,408,841.61x = 18,398,986,477,081,896 - Step 5: Solve for x
x = 18,398,986,477,081,896/155,408,841.61 - Step 6: Final answer
x = 118,390,860.43
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.