Finding the Fourth Proportional to 19,588,429.80, 29,382,644.70 and 13,616,461.80
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Solution
The fourth proportional to 19,588,429.80, 29,382,644.70 and 13,616,461.80 is: 20,424,692.70
Step by Step Solution
- Step 1: Write the proportion equation
19,588,429.80 : 29,382,644.70 = 13,616,461.80 : x - Step 2: Convert to fraction form
19,588,429.80/29,382,644.70 = 13,616,461.80/x - Step 3: Cross multiply
19,588,429.80x = 29,382,644.70 × 13,616,461.80 - Step 4: Simplify right side
19,588,429.80x = 400,087,659,140,522.50 - Step 5: Solve for x
x = 400,087,659,140,522.50/19,588,429.80 - Step 6: Final answer
x = 20,424,692.70
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1.5x scale
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.