Finding the Fourth Proportional to 165,637,241.56, 248,428,925.76 and 78,198,590.44
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Solution
The fourth proportional to 165,637,241.56, 248,428,925.76 and 78,198,590.44 is: 117,285,168.70
Step by Step Solution
- Step 1: Write the proportion equation
165,637,241.56 : 248,428,925.76 = 78,198,590.44 : x - Step 2: Convert to fraction form
165,637,241.56/248,428,925.76 = 78,198,590.44/x - Step 3: Cross multiply
165,637,241.56x = 248,428,925.76 × 78,198,590.44 - Step 4: Simplify right side
165,637,241.56x = 19,426,791,818,955,404 - Step 5: Solve for x
x = 19,426,791,818,955,404/165,637,241.56 - Step 6: Final answer
x = 117,285,168.70
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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.