Finding the Fourth Proportional to 933,161,874.70, 1,399,742,812.05 and 727,576,876.30
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Solution
The fourth proportional to 933,161,874.70, 1,399,742,812.05 and 727,576,876.30 is: 1,091,365,314.45
Step by Step Solution
- Step 1: Write the proportion equation
933,161,874.70 : 1,399,742,812.05 = 727,576,876.30 : x - Step 2: Convert to fraction form
933,161,874.70/1,399,742,812.05 = 727,576,876.30/x - Step 3: Cross multiply
933,161,874.70x = 1,399,742,812.05 × 727,576,876.30 - Step 4: Simplify right side
933,161,874.70x = 1,018,420,502,814,716,928 - Step 5: Solve for x
x = 1,018,420,502,814,716,928/933,161,874.70 - Step 6: Final answer
x = 1,091,365,314.45
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1.5x scale
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.