Finding the Fourth Proportional to 256,023,558.12, 353,312,498.16 and 138,548,874.96
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Solution
The fourth proportional to 256,023,558.12, 353,312,498.16 and 138,548,874.96 is: 191,197,440.93
Step by Step Solution
- Step 1: Write the proportion equation
256,023,558.12 : 353,312,498.16 = 138,548,874.96 : x - Step 2: Convert to fraction form
256,023,558.12/353,312,498.16 = 138,548,874.96/x - Step 3: Cross multiply
256,023,558.12x = 353,312,498.16 × 138,548,874.96 - Step 4: Simplify right side
256,023,558.12x = 48,951,049,129,375,080 - Step 5: Solve for x
x = 48,951,049,129,375,080/256,023,558.12 - Step 6: Final answer
x = 191,197,440.93
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.