Finding the Fourth Proportional to 8,938,981.99, 12,336,201.35 and 5,268,053.49
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Solution
The fourth proportional to 8,938,981.99, 12,336,201.35 and 5,268,053.49 is: 7,270,153.20
Step by Step Solution
- Step 1: Write the proportion equation
8,938,981.99 : 12,336,201.35 = 5,268,053.49 : x - Step 2: Convert to fraction form
8,938,981.99/12,336,201.35 = 5,268,053.49/x - Step 3: Cross multiply
8,938,981.99x = 12,336,201.35 × 5,268,053.49 - Step 4: Simplify right side
8,938,981.99x = 64,987,768,487,188.95 - Step 5: Solve for x
x = 64,987,768,487,188.95/8,938,981.99 - Step 6: Final answer
x = 7,270,153.20
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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.