Finding the Fourth Proportional to 30,581,985.70, 42,201,616.17 and 16,830,596.26
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Solution
The fourth proportional to 30,581,985.70, 42,201,616.17 and 16,830,596.26 is: 23,225,384.06
Step by Step Solution
- Step 1: Write the proportion equation
30,581,985.70 : 42,201,616.17 = 16,830,596.26 : x - Step 2: Convert to fraction form
30,581,985.70/42,201,616.17 = 16,830,596.26/x - Step 3: Cross multiply
30,581,985.70x = 42,201,616.17 × 16,830,596.26 - Step 4: Simplify right side
30,581,985.70x = 710,278,363,276,757.62 - Step 5: Solve for x
x = 710,278,363,276,757.62/30,581,985.70 - Step 6: Final answer
x = 23,225,384.06
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.