Finding the Fourth Proportional to 17,877,121.20, 26,815,681.80 and 4,413,949.20
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Solution
The fourth proportional to 17,877,121.20, 26,815,681.80 and 4,413,949.20 is: 6,620,923.80
Step by Step Solution
- Step 1: Write the proportion equation
17,877,121.20 : 26,815,681.80 = 4,413,949.20 : x - Step 2: Convert to fraction form
17,877,121.20/26,815,681.80 = 4,413,949.20/x - Step 3: Cross multiply
17,877,121.20x = 26,815,681.80 × 4,413,949.20 - Step 4: Simplify right side
17,877,121.20x = 118,363,057,228,564.56 - Step 5: Solve for x
x = 118,363,057,228,564.56/17,877,121.20 - Step 6: Final answer
x = 6,620,923.80
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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.