Finding the Fourth Proportional to 93,769,936.99, 129,447,495.29 and 65,916,523.69
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Solution
The fourth proportional to 93,769,936.99, 129,447,495.29 and 65,916,523.69 is: 90,996,423.41
Step by Step Solution
- Step 1: Write the proportion equation
93,769,936.99 : 129,447,495.29 = 65,916,523.69 : x - Step 2: Convert to fraction form
93,769,936.99/129,447,495.29 = 65,916,523.69/x - Step 3: Cross multiply
93,769,936.99x = 129,447,495.29 × 65,916,523.69 - Step 4: Simplify right side
93,769,936.99x = 8,532,728,889,894,449 - Step 5: Solve for x
x = 8,532,728,889,894,449/93,769,936.99 - Step 6: Final answer
x = 90,996,423.41
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.