Finding the Fourth Proportional to 1,270,811,316.33, 1,905,125,234.94 and 441,657,234.18
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Solution
The fourth proportional to 1,270,811,316.33, 1,905,125,234.94 and 441,657,234.18 is: 662,106,428.56
Step by Step Solution
- Step 1: Write the proportion equation
1,270,811,316.33 : 1,905,125,234.94 = 441,657,234.18 : x - Step 2: Convert to fraction form
1,270,811,316.33/1,905,125,234.94 = 441,657,234.18/x - Step 3: Cross multiply
1,270,811,316.33x = 1,905,125,234.94 × 441,657,234.18 - Step 4: Simplify right side
1,270,811,316.33x = 841,412,342,030,123,136 - Step 5: Solve for x
x = 841,412,342,030,123,136/1,270,811,316.33 - Step 6: Final answer
x = 662,106,428.56
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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.