Finding the Fourth Proportional to 162,258,372.30, 223,916,750.55 and 87,918,874.08
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Solution
The fourth proportional to 162,258,372.30, 223,916,750.55 and 87,918,874.08 is: 121,328,152.85
Step by Step Solution
- Step 1: Write the proportion equation
162,258,372.30 : 223,916,750.55 = 87,918,874.08 : x - Step 2: Convert to fraction form
162,258,372.30/223,916,750.55 = 87,918,874.08/x - Step 3: Cross multiply
162,258,372.30x = 223,916,750.55 × 87,918,874.08 - Step 4: Simplify right side
162,258,372.30x = 19,686,508,596,008,220 - Step 5: Solve for x
x = 19,686,508,596,008,220/162,258,372.30 - Step 6: Final answer
x = 121,328,152.85
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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.