Finding the Fourth Proportional to 87,927,549.30, 121,354,546.28 and 48,781,938.15
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Solution
The fourth proportional to 87,927,549.30, 121,354,546.28 and 48,781,938.15 is: 67,327,134.87
Step by Step Solution
- Step 1: Write the proportion equation
87,927,549.30 : 121,354,546.28 = 48,781,938.15 : x - Step 2: Convert to fraction form
87,927,549.30/121,354,546.28 = 48,781,938.15/x - Step 3: Cross multiply
87,927,549.30x = 121,354,546.28 × 48,781,938.15 - Step 4: Simplify right side
87,927,549.30x = 5,919,909,970,608,363 - Step 5: Solve for x
x = 5,919,909,970,608,363/87,927,549.30 - Step 6: Final answer
x = 67,327,134.87
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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.