Finding the Fourth Proportional to 1,366,565,517.50, 1,885,862,232.81 and 740,035,025.96
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Solution
The fourth proportional to 1,366,565,517.50, 1,885,862,232.81 and 740,035,025.96 is: 1,021,249,320.68
Step by Step Solution
- Step 1: Write the proportion equation
1,366,565,517.50 : 1,885,862,232.81 = 740,035,025.96 : x - Step 2: Convert to fraction form
1,366,565,517.50/1,885,862,232.81 = 740,035,025.96/x - Step 3: Cross multiply
1,366,565,517.50x = 1,885,862,232.81 × 740,035,025.96 - Step 4: Simplify right side
1,366,565,517.50x = 1,395,604,106,405,102,592 - Step 5: Solve for x
x = 1,395,604,106,405,102,592/1,366,565,517.50 - Step 6: Final answer
x = 1,021,249,320.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.