Finding the Fourth Proportional to 122,472,437.40, 183,708,656.10 and 74,099,496.60
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Solution
The fourth proportional to 122,472,437.40, 183,708,656.10 and 74,099,496.60 is: 111,149,244.90
Step by Step Solution
- Step 1: Write the proportion equation
122,472,437.40 : 183,708,656.10 = 74,099,496.60 : x - Step 2: Convert to fraction form
122,472,437.40/183,708,656.10 = 74,099,496.60/x - Step 3: Cross multiply
122,472,437.40x = 183,708,656.10 × 74,099,496.60 - Step 4: Simplify right side
122,472,437.40x = 13,612,718,938,072,518 - Step 5: Solve for x
x = 13,612,718,938,072,518/122,472,437.40 - Step 6: Final answer
x = 111,149,244.90
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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.