Finding the Fourth Proportional to 256,013,942.04, 353,300,170.68 and 138,539,260.08
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Solution
The fourth proportional to 256,013,942.04, 353,300,170.68 and 138,539,260.08 is: 191,184,682.53
Step by Step Solution
- Step 1: Write the proportion equation
256,013,942.04 : 353,300,170.68 = 138,539,260.08 : x - Step 2: Convert to fraction form
256,013,942.04/353,300,170.68 = 138,539,260.08/x - Step 3: Cross multiply
256,013,942.04x = 353,300,170.68 × 138,539,260.08 - Step 4: Simplify right side
256,013,942.04x = 48,945,944,232,144,920 - Step 5: Solve for x
x = 48,945,944,232,144,920/256,013,942.04 - Step 6: Final answer
x = 191,184,682.53
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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.