Finding the Fourth Proportional to 66,495,671.70, 99,806,493.15 and 40,986,503.70
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Solution
The fourth proportional to 66,495,671.70, 99,806,493.15 and 40,986,503.70 is: 61,518,578.52
Step by Step Solution
- Step 1: Write the proportion equation
66,495,671.70 : 99,806,493.15 = 40,986,503.70 : x - Step 2: Convert to fraction form
66,495,671.70/99,806,493.15 = 40,986,503.70/x - Step 3: Cross multiply
66,495,671.70x = 99,806,493.15 × 40,986,503.70 - Step 4: Simplify right side
66,495,671.70x = 4,090,719,200,776,500 - Step 5: Solve for x
x = 4,090,719,200,776,500/66,495,671.70 - Step 6: Final answer
x = 61,518,578.52
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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.