Finding the Fourth Proportional to 72,301,152.40, 99,738,697.08 and 46,168,193.68
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Solution
The fourth proportional to 72,301,152.40, 99,738,697.08 and 46,168,193.68 is: 63,688,548.96
Step by Step Solution
- Step 1: Write the proportion equation
72,301,152.40 : 99,738,697.08 = 46,168,193.68 : x - Step 2: Convert to fraction form
72,301,152.40/99,738,697.08 = 46,168,193.68/x - Step 3: Cross multiply
72,301,152.40x = 99,738,697.08 × 46,168,193.68 - Step 4: Simplify right side
72,301,152.40x = 4,604,755,484,180,290 - Step 5: Solve for x
x = 4,604,755,484,180,290/72,301,152.40 - Step 6: Final answer
x = 63,688,548.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.