Finding the Fourth Proportional to 638,546,400.63, 881,027,268.73 and 374,086,227.71
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Solution
The fourth proportional to 638,546,400.63, 881,027,268.73 and 374,086,227.71 is: 516,141,297.08
Step by Step Solution
- Step 1: Write the proportion equation
638,546,400.63 : 881,027,268.73 = 374,086,227.71 : x - Step 2: Convert to fraction form
638,546,400.63/881,027,268.73 = 374,086,227.71/x - Step 3: Cross multiply
638,546,400.63x = 881,027,268.73 × 374,086,227.71 - Step 4: Simplify right side
638,546,400.63x = 329,580,167,470,117,440 - Step 5: Solve for x
x = 329,580,167,470,117,440/638,546,400.63 - Step 6: Final answer
x = 516,141,297.08
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1.5x scale
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.