Finding the Fourth Proportional to 169,634,947.20, 254,452,420.80 and 115,887,235.20
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Solution
The fourth proportional to 169,634,947.20, 254,452,420.80 and 115,887,235.20 is: 173,830,852.80
Step by Step Solution
- Step 1: Write the proportion equation
169,634,947.20 : 254,452,420.80 = 115,887,235.20 : x - Step 2: Convert to fraction form
169,634,947.20/254,452,420.80 = 115,887,235.20/x - Step 3: Cross multiply
169,634,947.20x = 254,452,420.80 × 115,887,235.20 - Step 4: Simplify right side
169,634,947.20x = 29,487,787,536,458,976 - Step 5: Solve for x
x = 29,487,787,536,458,976/169,634,947.20 - Step 6: Final answer
x = 173,830,852.80
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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.