Finding the Fourth Proportional to 280,232,674.30, 386,721,075.77 and 151,338,471.95
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Solution
The fourth proportional to 280,232,674.30, 386,721,075.77 and 151,338,471.95 is: 208,847,083.32
Step by Step Solution
- Step 1: Write the proportion equation
280,232,674.30 : 386,721,075.77 = 151,338,471.95 : x - Step 2: Convert to fraction form
280,232,674.30/386,721,075.77 = 151,338,471.95/x - Step 3: Cross multiply
280,232,674.30x = 386,721,075.77 × 151,338,471.95 - Step 4: Simplify right side
280,232,674.30x = 58,525,776,676,492,360 - Step 5: Solve for x
x = 58,525,776,676,492,360/280,232,674.30 - Step 6: Final answer
x = 208,847,083.32
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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.