Finding the Fourth Proportional to 445,865,225.26, 615,258,009.57 and 257,705,708.17
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Solution
The fourth proportional to 445,865,225.26, 615,258,009.57 and 257,705,708.17 is: 355,613,068.88
Step by Step Solution
- Step 1: Write the proportion equation
445,865,225.26 : 615,258,009.57 = 257,705,708.17 : x - Step 2: Convert to fraction form
445,865,225.26/615,258,009.57 = 257,705,708.17/x - Step 3: Cross multiply
445,865,225.26x = 615,258,009.57 × 257,705,708.17 - Step 4: Simplify right side
445,865,225.26x = 158,555,501,063,501,504 - Step 5: Solve for x
x = 158,555,501,063,501,504/445,865,225.26 - Step 6: Final answer
x = 355,613,068.88
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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.