Finding the Fourth Proportional to 13,308,860.70, 19,963,291.05 and 4,786,121.70
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Solution
The fourth proportional to 13,308,860.70, 19,963,291.05 and 4,786,121.70 is: 7,179,182.55
Step by Step Solution
- Step 1: Write the proportion equation
13,308,860.70 : 19,963,291.05 = 4,786,121.70 : x - Step 2: Convert to fraction form
13,308,860.70/19,963,291.05 = 4,786,121.70/x - Step 3: Cross multiply
13,308,860.70x = 19,963,291.05 × 4,786,121.70 - Step 4: Simplify right side
13,308,860.70x = 95,546,740,497,820.80 - Step 5: Solve for x
x = 95,546,740,497,820.80/13,308,860.70 - Step 6: Final answer
x = 7,179,182.55
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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.