Finding the Fourth Proportional to 112,710,985.97, 168,948,491.49 and 47,169,677.57
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Solution
The fourth proportional to 112,710,985.97, 168,948,491.49 and 47,169,677.57 is: 70,705,138.46
Step by Step Solution
- Step 1: Write the proportion equation
112,710,985.97 : 168,948,491.49 = 47,169,677.57 : x - Step 2: Convert to fraction form
112,710,985.97/168,948,491.49 = 47,169,677.57/x - Step 3: Cross multiply
112,710,985.97x = 168,948,491.49 × 47,169,677.57 - Step 4: Simplify right side
112,710,985.97x = 7,969,245,868,676,446 - Step 5: Solve for x
x = 7,969,245,868,676,446/112,710,985.97 - Step 6: Final answer
x = 70,705,138.46
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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.