Finding the Fourth Proportional to 14,687,999.20, 22,031,998.80 and 10,656,920.80
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Solution
The fourth proportional to 14,687,999.20, 22,031,998.80 and 10,656,920.80 is: 15,985,381.20
Step by Step Solution
- Step 1: Write the proportion equation
14,687,999.20 : 22,031,998.80 = 10,656,920.80 : x - Step 2: Convert to fraction form
14,687,999.20/22,031,998.80 = 10,656,920.80/x - Step 3: Cross multiply
14,687,999.20x = 22,031,998.80 × 10,656,920.80 - Step 4: Simplify right side
14,687,999.20x = 234,793,266,277,295.06 - Step 5: Solve for x
x = 234,793,266,277,295.06/14,687,999.20 - Step 6: Final answer
x = 15,985,381.20
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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.