Finding the Fourth Proportional to 62,903,836.80, 86,834,077.68 and 42,289,240.08
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Solution
The fourth proportional to 62,903,836.80, 86,834,077.68 and 42,289,240.08 is: 58,377,157.02
Step by Step Solution
- Step 1: Write the proportion equation
62,903,836.80 : 86,834,077.68 = 42,289,240.08 : x - Step 2: Convert to fraction form
62,903,836.80/86,834,077.68 = 42,289,240.08/x - Step 3: Cross multiply
62,903,836.80x = 86,834,077.68 × 42,289,240.08 - Step 4: Simplify right side
62,903,836.80x = 3,672,147,158,134,889.50 - Step 5: Solve for x
x = 3,672,147,158,134,889.50/62,903,836.80 - Step 6: Final answer
x = 58,377,157.02
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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.