Finding the Fourth Proportional to 74,871,875.20, 112,307,812.80 and 44,638,787.20
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Solution
The fourth proportional to 74,871,875.20, 112,307,812.80 and 44,638,787.20 is: 66,958,180.80
Step by Step Solution
- Step 1: Write the proportion equation
74,871,875.20 : 112,307,812.80 = 44,638,787.20 : x - Step 2: Convert to fraction form
74,871,875.20/112,307,812.80 = 44,638,787.20/x - Step 3: Cross multiply
74,871,875.20x = 112,307,812.80 × 44,638,787.20 - Step 4: Simplify right side
74,871,875.20x = 5,013,284,556,476,636 - Step 5: Solve for x
x = 5,013,284,556,476,636/74,871,875.20 - Step 6: Final answer
x = 66,958,180.80
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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.