Finding the Fourth Proportional to 186,971,105.74, 258,033,477.68 and 103,337,439.08
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Solution
The fourth proportional to 186,971,105.74, 258,033,477.68 and 103,337,439.08 is: 142,613,045.34
Step by Step Solution
- Step 1: Write the proportion equation
186,971,105.74 : 258,033,477.68 = 103,337,439.08 : x - Step 2: Convert to fraction form
186,971,105.74/258,033,477.68 = 103,337,439.08/x - Step 3: Cross multiply
186,971,105.74x = 258,033,477.68 × 103,337,439.08 - Step 4: Simplify right side
186,971,105.74x = 26,664,518,780,357,540 - Step 5: Solve for x
x = 26,664,518,780,357,540/186,971,105.74 - Step 6: Final answer
x = 142,613,045.34
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.