Finding the Fourth Proportional to 20,736,605.80, 31,104,908.70 and 7,272,029.80
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Solution
The fourth proportional to 20,736,605.80, 31,104,908.70 and 7,272,029.80 is: 10,908,044.70
Step by Step Solution
- Step 1: Write the proportion equation
20,736,605.80 : 31,104,908.70 = 7,272,029.80 : x - Step 2: Convert to fraction form
20,736,605.80/31,104,908.70 = 7,272,029.80/x - Step 3: Cross multiply
20,736,605.80x = 31,104,908.70 × 7,272,029.80 - Step 4: Simplify right side
20,736,605.80x = 226,195,822,992,679.25 - Step 5: Solve for x
x = 226,195,822,992,679.25/20,736,605.80 - Step 6: Final answer
x = 10,908,044.70
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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.