Finding the Fourth Proportional to 210,308,135.05, 315,180,215.13 and 163,677,923.98
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Solution
The fourth proportional to 210,308,135.05, 315,180,215.13 and 163,677,923.98 is: 245,297,421.71
Step by Step Solution
- Step 1: Write the proportion equation
210,308,135.05 : 315,180,215.13 = 163,677,923.98 : x - Step 2: Convert to fraction form
210,308,135.05/315,180,215.13 = 163,677,923.98/x - Step 3: Cross multiply
210,308,135.05x = 315,180,215.13 × 163,677,923.98 - Step 4: Simplify right side
210,308,135.05x = 51,588,043,292,048,184 - Step 5: Solve for x
x = 51,588,043,292,048,184/210,308,135.05 - Step 6: Final answer
x = 245,297,421.71
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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.