Finding the Fourth Proportional to 933,161,880.20, 1,399,742,820.30 and 727,576,881.80
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Solution
The fourth proportional to 933,161,880.20, 1,399,742,820.30 and 727,576,881.80 is: 1,091,365,322.70
Step by Step Solution
- Step 1: Write the proportion equation
933,161,880.20 : 1,399,742,820.30 = 727,576,881.80 : x - Step 2: Convert to fraction form
933,161,880.20/1,399,742,820.30 = 727,576,881.80/x - Step 3: Cross multiply
933,161,880.20x = 1,399,742,820.30 × 727,576,881.80 - Step 4: Simplify right side
933,161,880.20x = 1,018,420,516,515,811,584 - Step 5: Solve for x
x = 1,018,420,516,515,811,584/933,161,880.20 - Step 6: Final answer
x = 1,091,365,322.70
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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.