Finding the Fourth Proportional to 44,291,874.80, 66,447,143.40 and 18,719,721.20
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Solution
The fourth proportional to 44,291,874.80, 66,447,143.40 and 18,719,721.20 is: 28,083,525.58
Step by Step Solution
- Step 1: Write the proportion equation
44,291,874.80 : 66,447,143.40 = 18,719,721.20 : x - Step 2: Convert to fraction form
44,291,874.80/66,447,143.40 = 18,719,721.20/x - Step 3: Cross multiply
44,291,874.80x = 66,447,143.40 × 18,719,721.20 - Step 4: Simplify right side
44,291,874.80x = 1,243,871,998,984,420 - Step 5: Solve for x
x = 1,243,871,998,984,420/44,291,874.80 - Step 6: Final answer
x = 28,083,525.58
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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.