Finding the Fourth Proportional to 66,420,266.70, 99,672,390.45 and 39,126,506.70
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Solution
The fourth proportional to 66,420,266.70, 99,672,390.45 and 39,126,506.70 is: 58,714,495.54
Step by Step Solution
- Step 1: Write the proportion equation
66,420,266.70 : 99,672,390.45 = 39,126,506.70 : x - Step 2: Convert to fraction form
66,420,266.70/99,672,390.45 = 39,126,506.70/x - Step 3: Cross multiply
66,420,266.70x = 99,672,390.45 × 39,126,506.70 - Step 4: Simplify right side
66,420,266.70x = 3,899,832,452,746,941.50 - Step 5: Solve for x
x = 3,899,832,452,746,941.50/66,420,266.70 - Step 6: Final answer
x = 58,714,495.54
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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.