Finding the Fourth Proportional to 979,817,570.20, 1,469,726,355.30 and 880,048,379.80
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Solution
The fourth proportional to 979,817,570.20, 1,469,726,355.30 and 880,048,379.80 is: 1,320,072,569.70
Step by Step Solution
- Step 1: Write the proportion equation
979,817,570.20 : 1,469,726,355.30 = 880,048,379.80 : x - Step 2: Convert to fraction form
979,817,570.20/1,469,726,355.30 = 880,048,379.80/x - Step 3: Cross multiply
979,817,570.20x = 1,469,726,355.30 × 880,048,379.80 - Step 4: Simplify right side
979,817,570.20x = 1,293,430,297,731,123,968 - Step 5: Solve for x
x = 1,293,430,297,731,123,968/979,817,570.20 - Step 6: Final answer
x = 1,320,072,569.70
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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.