Finding the Fourth Proportional to 149,070,403.20, 223,616,102.40 and 84,405,187.20
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Solution
The fourth proportional to 149,070,403.20, 223,616,102.40 and 84,405,187.20 is: 126,613,724.65
Step by Step Solution
- Step 1: Write the proportion equation
149,070,403.20 : 223,616,102.40 = 84,405,187.20 : x - Step 2: Convert to fraction form
149,070,403.20/223,616,102.40 = 84,405,187.20/x - Step 3: Cross multiply
149,070,403.20x = 223,616,102.40 × 84,405,187.20 - Step 4: Simplify right side
149,070,403.20x = 18,874,358,984,006,372 - Step 5: Solve for x
x = 18,874,358,984,006,372/149,070,403.20 - Step 6: Final answer
x = 126,613,724.65
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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.