Finding the Fourth Proportional to 201,204,028.90, 301,806,043.35 and 139,982,025.70
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Solution
The fourth proportional to 201,204,028.90, 301,806,043.35 and 139,982,025.70 is: 209,973,038.55
Step by Step Solution
- Step 1: Write the proportion equation
201,204,028.90 : 301,806,043.35 = 139,982,025.70 : x - Step 2: Convert to fraction form
201,204,028.90/301,806,043.35 = 139,982,025.70/x - Step 3: Cross multiply
201,204,028.90x = 301,806,043.35 × 139,982,025.70 - Step 4: Simplify right side
201,204,028.90x = 42,247,421,316,635,016 - Step 5: Solve for x
x = 42,247,421,316,635,016/201,204,028.90 - Step 6: Final answer
x = 209,973,038.55
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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.