Finding the Fourth Proportional to 155,309,372.41, 214,331,419.97 and 85,699,236.01
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Solution
The fourth proportional to 155,309,372.41, 214,331,419.97 and 85,699,236.01 is: 118,267,421.08
Step by Step Solution
- Step 1: Write the proportion equation
155,309,372.41 : 214,331,419.97 = 85,699,236.01 : x - Step 2: Convert to fraction form
155,309,372.41/214,331,419.97 = 85,699,236.01/x - Step 3: Cross multiply
155,309,372.41x = 214,331,419.97 × 85,699,236.01 - Step 4: Simplify right side
155,309,372.41x = 18,368,038,944,367,460 - Step 5: Solve for x
x = 18,368,038,944,367,460/155,309,372.41 - Step 6: Final answer
x = 118,267,421.08
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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.