Finding the Fourth Proportional to 145,788,234.96, 201,188,125.98 and 79,712,996.88
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Solution
The fourth proportional to 145,788,234.96, 201,188,125.98 and 79,712,996.88 is: 110,004,133.48
Step by Step Solution
- Step 1: Write the proportion equation
145,788,234.96 : 201,188,125.98 = 79,712,996.88 : x - Step 2: Convert to fraction form
145,788,234.96/201,188,125.98 = 79,712,996.88/x - Step 3: Cross multiply
145,788,234.96x = 201,188,125.98 × 79,712,996.88 - Step 4: Simplify right side
145,788,234.96x = 16,037,308,458,536,786 - Step 5: Solve for x
x = 16,037,308,458,536,786/145,788,234.96 - Step 6: Final answer
x = 110,004,133.48
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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.