Finding the Fourth Proportional to 18,387,712.80, 27,539,578.80 and 10,829,440.80
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Solution
The fourth proportional to 18,387,712.80, 27,539,578.80 and 10,829,440.80 is: 16,219,430.96
Step by Step Solution
- Step 1: Write the proportion equation
18,387,712.80 : 27,539,578.80 = 10,829,440.80 : x - Step 2: Convert to fraction form
18,387,712.80/27,539,578.80 = 10,829,440.80/x - Step 3: Cross multiply
18,387,712.80x = 27,539,578.80 × 10,829,440.80 - Step 4: Simplify right side
18,387,712.80x = 298,238,238,271,535.06 - Step 5: Solve for x
x = 298,238,238,271,535.06/18,387,712.80 - Step 6: Final answer
x = 16,219,430.96
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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.