Finding the Fourth Proportional to 156,678,536.60, 235,017,804.90 and 48,972,987.80
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Solution
The fourth proportional to 156,678,536.60, 235,017,804.90 and 48,972,987.80 is: 73,459,481.70
Step by Step Solution
- Step 1: Write the proportion equation
156,678,536.60 : 235,017,804.90 = 48,972,987.80 : x - Step 2: Convert to fraction form
156,678,536.60/235,017,804.90 = 48,972,987.80/x - Step 3: Cross multiply
156,678,536.60x = 235,017,804.90 × 48,972,987.80 - Step 4: Simplify right side
156,678,536.60x = 11,509,524,092,150,480 - Step 5: Solve for x
x = 11,509,524,092,150,480/156,678,536.60 - Step 6: Final answer
x = 73,459,481.70
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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.