Finding the Fourth Proportional to 611,712,004.20, 917,568,006.30 and 202,831,261.80
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Solution
The fourth proportional to 611,712,004.20, 917,568,006.30 and 202,831,261.80 is: 304,246,892.70
Step by Step Solution
- Step 1: Write the proportion equation
611,712,004.20 : 917,568,006.30 = 202,831,261.80 : x - Step 2: Convert to fraction form
611,712,004.20/917,568,006.30 = 202,831,261.80/x - Step 3: Cross multiply
611,712,004.20x = 917,568,006.30 × 202,831,261.80 - Step 4: Simplify right side
611,712,004.20x = 186,111,476,505,139,360 - Step 5: Solve for x
x = 186,111,476,505,139,360/611,712,004.20 - Step 6: Final answer
x = 304,246,892.70
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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.