Finding the Fourth Proportional to 272,801,918.70, 409,202,878.05 and 163,962,801.90
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Solution
The fourth proportional to 272,801,918.70, 409,202,878.05 and 163,962,801.90 is: 245,944,202.85
Step by Step Solution
- Step 1: Write the proportion equation
272,801,918.70 : 409,202,878.05 = 163,962,801.90 : x - Step 2: Convert to fraction form
272,801,918.70/409,202,878.05 = 163,962,801.90/x - Step 3: Cross multiply
272,801,918.70x = 409,202,878.05 × 163,962,801.90 - Step 4: Simplify right side
272,801,918.70x = 67,094,050,430,622,016 - Step 5: Solve for x
x = 67,094,050,430,622,016/272,801,918.70 - Step 6: Final answer
x = 245,944,202.85
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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.