Finding the Fourth Proportional to 78,889,400.99, 118,334,099.66 and 21,381,671.01
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Solution
The fourth proportional to 78,889,400.99, 118,334,099.66 and 21,381,671.01 is: 32,072,506.02
Step by Step Solution
- Step 1: Write the proportion equation
78,889,400.99 : 118,334,099.66 = 21,381,671.01 : x - Step 2: Convert to fraction form
78,889,400.99/118,334,099.66 = 21,381,671.01/x - Step 3: Cross multiply
78,889,400.99x = 118,334,099.66 × 21,381,671.01 - Step 4: Simplify right side
78,889,400.99x = 2,530,180,788,194,673 - Step 5: Solve for x
x = 2,530,180,788,194,673/78,889,400.99 - Step 6: Final answer
x = 32,072,506.02
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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.