Finding the Fourth Proportional to 7,487,319.60, 11,232,220.95 and 2,628,366.03
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Solution
The fourth proportional to 7,487,319.60, 11,232,220.95 and 2,628,366.03 is: 3,942,984.88
Step by Step Solution
- Step 1: Write the proportion equation
7,487,319.60 : 11,232,220.95 = 2,628,366.03 : x - Step 2: Convert to fraction form
7,487,319.60/11,232,220.95 = 2,628,366.03/x - Step 3: Cross multiply
7,487,319.60x = 11,232,220.95 × 2,628,366.03 - Step 4: Simplify right side
7,487,319.60x = 29,522,387,986,434.32 - Step 5: Solve for x
x = 29,522,387,986,434.32/7,487,319.60 - Step 6: Final answer
x = 3,942,984.88
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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.