Finding the Fourth Proportional to 74,212,638.08, 111,286,323.84 and 30,463,358.72
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Solution
The fourth proportional to 74,212,638.08, 111,286,323.84 and 30,463,358.72 is: 45,681,642.53
Step by Step Solution
- Step 1: Write the proportion equation
74,212,638.08 : 111,286,323.84 = 30,463,358.72 : x - Step 2: Convert to fraction form
74,212,638.08/111,286,323.84 = 30,463,358.72/x - Step 3: Cross multiply
74,212,638.08x = 111,286,323.84 × 30,463,358.72 - Step 4: Simplify right side
74,212,638.08x = 3,390,155,203,768,008 - Step 5: Solve for x
x = 3,390,155,203,768,008/74,212,638.08 - Step 6: Final answer
x = 45,681,642.53
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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.