Finding the Fourth Proportional to 122,482,709.40, 183,724,064.10 and 83,683,579.80
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Solution
The fourth proportional to 122,482,709.40, 183,724,064.10 and 83,683,579.80 is: 125,525,369.70
Step by Step Solution
- Step 1: Write the proportion equation
122,482,709.40 : 183,724,064.10 = 83,683,579.80 : x - Step 2: Convert to fraction form
122,482,709.40/183,724,064.10 = 83,683,579.80/x - Step 3: Cross multiply
122,482,709.40x = 183,724,064.10 × 83,683,579.80 - Step 4: Simplify right side
122,482,709.40x = 15,374,687,379,292,664 - Step 5: Solve for x
x = 15,374,687,379,292,664/122,482,709.40 - Step 6: Final answer
x = 125,525,369.70
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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.