Finding the Fourth Proportional to 81,823,726.63, 112,919,136.65 and 44,656,390.78
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Solution
The fourth proportional to 81,823,726.63, 112,919,136.65 and 44,656,390.78 is: 61,627,125.77
Step by Step Solution
- Step 1: Write the proportion equation
81,823,726.63 : 112,919,136.65 = 44,656,390.78 : x - Step 2: Convert to fraction form
81,823,726.63/112,919,136.65 = 44,656,390.78/x - Step 3: Cross multiply
81,823,726.63x = 112,919,136.65 × 44,656,390.78 - Step 4: Simplify right side
81,823,726.63x = 5,042,561,092,444,502 - Step 5: Solve for x
x = 5,042,561,092,444,502/81,823,726.63 - Step 6: Final answer
x = 61,627,125.77
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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.