Finding the Fourth Proportional to 261,319,057.79, 392,250,981.80 and 115,854,774.44
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Solution
The fourth proportional to 261,319,057.79, 392,250,981.80 and 115,854,774.44 is: 173,902,926.96
Step by Step Solution
- Step 1: Write the proportion equation
261,319,057.79 : 392,250,981.80 = 115,854,774.44 : x - Step 2: Convert to fraction form
261,319,057.79/392,250,981.80 = 115,854,774.44/x - Step 3: Cross multiply
261,319,057.79x = 392,250,981.80 × 115,854,774.44 - Step 4: Simplify right side
261,319,057.79x = 45,444,149,018,635,928 - Step 5: Solve for x
x = 45,444,149,018,635,928/261,319,057.79 - Step 6: Final answer
x = 173,902,926.96
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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.