Finding the Fourth Proportional to 470,863,017.52, 649,748,729.56 and 272,637,891.09
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Solution
The fourth proportional to 470,863,017.52, 649,748,729.56 and 272,637,891.09 is: 376,215,835.12
Step by Step Solution
- Step 1: Write the proportion equation
470,863,017.52 : 649,748,729.56 = 272,637,891.09 : x - Step 2: Convert to fraction form
470,863,017.52/649,748,729.56 = 272,637,891.09/x - Step 3: Cross multiply
470,863,017.52x = 649,748,729.56 × 272,637,891.09 - Step 4: Simplify right side
470,863,017.52x = 177,146,123,363,234,912 - Step 5: Solve for x
x = 177,146,123,363,234,912/470,863,017.52 - Step 6: Final answer
x = 376,215,835.12
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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.