Finding the Fourth Proportional to 811,478,378.10, 1,217,268,060.18 and 293,913,302.58
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Solution
The fourth proportional to 811,478,378.10, 1,217,268,060.18 and 293,913,302.58 is: 440,888,242.19
Step by Step Solution
- Step 1: Write the proportion equation
811,478,378.10 : 1,217,268,060.18 = 293,913,302.58 : x - Step 2: Convert to fraction form
811,478,378.10/1,217,268,060.18 = 293,913,302.58/x - Step 3: Cross multiply
811,478,378.10x = 1,217,268,060.18 × 293,913,302.58 - Step 4: Simplify right side
811,478,378.10x = 357,771,275,692,654,016 - Step 5: Solve for x
x = 357,771,275,692,654,016/811,478,378.10 - Step 6: Final answer
x = 440,888,242.19
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.