Finding the Fourth Proportional to 91,980,581.23, 138,000,765.36 and 61,399,473.18
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Solution
The fourth proportional to 91,980,581.23, 138,000,765.36 and 61,399,473.18 is: 92,119,164.48
Step by Step Solution
- Step 1: Write the proportion equation
91,980,581.23 : 138,000,765.36 = 61,399,473.18 : x - Step 2: Convert to fraction form
91,980,581.23/138,000,765.36 = 61,399,473.18/x - Step 3: Cross multiply
91,980,581.23x = 138,000,765.36 × 61,399,473.18 - Step 4: Simplify right side
91,980,581.23x = 8,473,174,291,540,794 - Step 5: Solve for x
x = 8,473,174,291,540,794/91,980,581.23 - Step 6: Final answer
x = 92,119,164.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.