Finding the Fourth Proportional to 78,889,403.05, 118,334,102.76 and 21,381,673.08
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Solution
The fourth proportional to 78,889,403.05, 118,334,102.76 and 21,381,673.08 is: 32,072,509.13
Step by Step Solution
- Step 1: Write the proportion equation
78,889,403.05 : 118,334,102.76 = 21,381,673.08 : x - Step 2: Convert to fraction form
78,889,403.05/118,334,102.76 = 21,381,673.08/x - Step 3: Cross multiply
78,889,403.05x = 118,334,102.76 × 21,381,673.08 - Step 4: Simplify right side
78,889,403.05x = 2,530,181,099,429,445.50 - Step 5: Solve for x
x = 2,530,181,099,429,445.50/78,889,403.05 - Step 6: Final answer
x = 32,072,509.13
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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.