Finding the Fourth Proportional to 157,230,234.90, 235,845,352.35 and 99,551,171.70
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Solution
The fourth proportional to 157,230,234.90, 235,845,352.35 and 99,551,171.70 is: 149,326,757.55
Step by Step Solution
- Step 1: Write the proportion equation
157,230,234.90 : 235,845,352.35 = 99,551,171.70 : x - Step 2: Convert to fraction form
157,230,234.90/235,845,352.35 = 99,551,171.70/x - Step 3: Cross multiply
157,230,234.90x = 235,845,352.35 × 99,551,171.70 - Step 4: Simplify right side
157,230,234.90x = 23,478,681,166,441,848 - Step 5: Solve for x
x = 23,478,681,166,441,848/157,230,234.90 - Step 6: Final answer
x = 149,326,757.55
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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.