Finding the Fourth Proportional to 455,692,451.31, 628,956,748.60 and 277,038,377.99
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Solution
The fourth proportional to 455,692,451.31, 628,956,748.60 and 277,038,377.99 is: 382,374,465.40
Step by Step Solution
- Step 1: Write the proportion equation
455,692,451.31 : 628,956,748.60 = 277,038,377.99 : x - Step 2: Convert to fraction form
455,692,451.31/628,956,748.60 = 277,038,377.99/x - Step 3: Cross multiply
455,692,451.31x = 628,956,748.60 × 277,038,377.99 - Step 4: Simplify right side
455,692,451.31x = 174,245,157,458,008,224 - Step 5: Solve for x
x = 174,245,157,458,008,224/455,692,451.31 - Step 6: Final answer
x = 382,374,465.40
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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.