Finding the Fourth Proportional to 361,118,253.96, 498,495,742.25 and 243,802,489.19
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Solution
The fourth proportional to 361,118,253.96, 498,495,742.25 and 243,802,489.19 is: 336,550,427.66
Step by Step Solution
- Step 1: Write the proportion equation
361,118,253.96 : 498,495,742.25 = 243,802,489.19 : x - Step 2: Convert to fraction form
361,118,253.96/498,495,742.25 = 243,802,489.19/x - Step 3: Cross multiply
361,118,253.96x = 498,495,742.25 × 243,802,489.19 - Step 4: Simplify right side
361,118,253.96x = 121,534,502,807,455,168 - Step 5: Solve for x
x = 121,534,502,807,455,168/361,118,253.96 - Step 6: Final answer
x = 336,550,427.66
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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.