Finding the Fourth Proportional to 219,208,862.42, 302,508,204.21 and 131,102,846.49
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Solution
The fourth proportional to 219,208,862.42, 302,508,204.21 and 131,102,846.49 is: 180,921,912.65
Step by Step Solution
- Step 1: Write the proportion equation
219,208,862.42 : 302,508,204.21 = 131,102,846.49 : x - Step 2: Convert to fraction form
219,208,862.42/302,508,204.21 = 131,102,846.49/x - Step 3: Cross multiply
219,208,862.42x = 302,508,204.21 × 131,102,846.49 - Step 4: Simplify right side
219,208,862.42x = 39,659,686,658,509,200 - Step 5: Solve for x
x = 39,659,686,658,509,200/219,208,862.42 - Step 6: Final answer
x = 180,921,912.65
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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.