Finding the Fourth Proportional to 144,735,903.68, 216,925,988.78 and 66,907,531.68
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Solution
The fourth proportional to 144,735,903.68, 216,925,988.78 and 66,907,531.68 is: 100,279,074.49
Step by Step Solution
- Step 1: Write the proportion equation
144,735,903.68 : 216,925,988.78 = 66,907,531.68 : x - Step 2: Convert to fraction form
144,735,903.68/216,925,988.78 = 66,907,531.68/x - Step 3: Cross multiply
144,735,903.68x = 216,925,988.78 × 66,907,531.68 - Step 4: Simplify right side
144,735,903.68x = 14,513,982,466,513,174 - Step 5: Solve for x
x = 14,513,982,466,513,174/144,735,903.68 - Step 6: Final answer
x = 100,279,074.49
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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.