Finding the Fourth Proportional to 256,018,881.24, 353,306,056.50 and 138,544,211.43
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Solution
The fourth proportional to 256,018,881.24, 353,306,056.50 and 138,544,211.43 is: 191,191,011.98
Step by Step Solution
- Step 1: Write the proportion equation
256,018,881.24 : 353,306,056.50 = 138,544,211.43 : x - Step 2: Convert to fraction form
256,018,881.24/353,306,056.50 = 138,544,211.43/x - Step 3: Cross multiply
256,018,881.24x = 353,306,056.50 × 138,544,211.43 - Step 4: Simplify right side
256,018,881.24x = 48,948,508,991,235,528 - Step 5: Solve for x
x = 48,948,508,991,235,528/256,018,881.24 - Step 6: Final answer
x = 191,191,011.98
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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.