Finding the Fourth Proportional to 122,482,262.40, 183,723,393.60 and 83,683,132.80
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Solution
The fourth proportional to 122,482,262.40, 183,723,393.60 and 83,683,132.80 is: 125,524,699.20
Step by Step Solution
- Step 1: Write the proportion equation
122,482,262.40 : 183,723,393.60 = 83,683,132.80 : x - Step 2: Convert to fraction form
122,482,262.40/183,723,393.60 = 83,683,132.80/x - Step 3: Cross multiply
122,482,262.40x = 183,723,393.60 × 83,683,132.80 - Step 4: Simplify right side
122,482,262.40x = 15,374,549,145,095,470 - Step 5: Solve for x
x = 15,374,549,145,095,470/122,482,262.40 - Step 6: Final answer
x = 125,524,699.20
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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.