Finding the Fourth Proportional to 99,638,160.04, 149,463,543.42 and 42,119,710.12
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Solution
The fourth proportional to 99,638,160.04, 149,463,543.42 and 42,119,710.12 is: 63,182,229.78
Step by Step Solution
- Step 1: Write the proportion equation
99,638,160.04 : 149,463,543.42 = 42,119,710.12 : x - Step 2: Convert to fraction form
99,638,160.04/149,463,543.42 = 42,119,710.12/x - Step 3: Cross multiply
99,638,160.04x = 149,463,543.42 × 42,119,710.12 - Step 4: Simplify right side
99,638,160.04x = 6,295,361,122,358,432 - Step 5: Solve for x
x = 6,295,361,122,358,432/99,638,160.04 - Step 6: Final answer
x = 63,182,229.78
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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.