Finding the Fourth Proportional to 212,985,124.44, 291,788,225.31 and 205,020,726.84
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Solution
The fourth proportional to 212,985,124.44, 291,788,225.31 and 205,020,726.84 is: 280,877,052.77
Step by Step Solution
- Step 1: Write the proportion equation
212,985,124.44 : 291,788,225.31 = 205,020,726.84 : x - Step 2: Convert to fraction form
212,985,124.44/291,788,225.31 = 205,020,726.84/x - Step 3: Cross multiply
212,985,124.44x = 291,788,225.31 × 205,020,726.84 - Step 4: Simplify right side
212,985,124.44x = 59,822,634,036,409,888 - Step 5: Solve for x
x = 59,822,634,036,409,888/212,985,124.44 - Step 6: Final answer
x = 280,877,052.77
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.