Finding the Fourth Proportional to 758,247,643.20, 1,137,371,464.80 and 758,247,643.20
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Solution
The fourth proportional to 758,247,643.20, 1,137,371,464.80 and 758,247,643.20 is: 1,137,371,464.80
Step by Step Solution
- Step 1: Write the proportion equation
758,247,643.20 : 1,137,371,464.80 = 758,247,643.20 : x - Step 2: Convert to fraction form
758,247,643.20/1,137,371,464.80 = 758,247,643.20/x - Step 3: Cross multiply
758,247,643.20x = 1,137,371,464.80 × 758,247,643.20 - Step 4: Simplify right side
758,247,643.20x = 862,409,232,627,531,776 - Step 5: Solve for x
x = 862,409,232,627,531,776/758,247,643.20 - Step 6: Final answer
x = 1,137,371,464.80
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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.