Finding the Fourth Proportional to 78,374,649.06, 117,562,349.16 and 23,787,708.48
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Solution
The fourth proportional to 78,374,649.06, 117,562,349.16 and 23,787,708.48 is: 35,681,676.71
Step by Step Solution
- Step 1: Write the proportion equation
78,374,649.06 : 117,562,349.16 = 23,787,708.48 : x - Step 2: Convert to fraction form
78,374,649.06/117,562,349.16 = 23,787,708.48/x - Step 3: Cross multiply
78,374,649.06x = 117,562,349.16 × 23,787,708.48 - Step 4: Simplify right side
78,374,649.06x = 2,796,538,890,042,053 - Step 5: Solve for x
x = 2,796,538,890,042,053/78,374,649.06 - Step 6: Final answer
x = 35,681,676.71
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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.