Finding the Fourth Proportional to 118,209,839.60, 163,184,868.68 and 68,640,557.92
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Solution
The fourth proportional to 118,209,839.60, 163,184,868.68 and 68,640,557.92 is: 94,756,075.03
Step by Step Solution
- Step 1: Write the proportion equation
118,209,839.60 : 163,184,868.68 = 68,640,557.92 : x - Step 2: Convert to fraction form
118,209,839.60/163,184,868.68 = 68,640,557.92/x - Step 3: Cross multiply
118,209,839.60x = 163,184,868.68 × 68,640,557.92 - Step 4: Simplify right side
118,209,839.60x = 11,201,100,430,297,134 - Step 5: Solve for x
x = 11,201,100,430,297,134/118,209,839.60 - Step 6: Final answer
x = 94,756,075.03
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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.