Finding the Fourth Proportional to 21,261,357.14, 31,896,686.87 and 6,885,878.09
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Solution
The fourth proportional to 21,261,357.14, 31,896,686.87 and 6,885,878.09 is: 10,330,323.49
Step by Step Solution
- Step 1: Write the proportion equation
21,261,357.14 : 31,896,686.87 = 6,885,878.09 : x - Step 2: Convert to fraction form
21,261,357.14/31,896,686.87 = 6,885,878.09/x - Step 3: Cross multiply
21,261,357.14x = 31,896,686.87 × 6,885,878.09 - Step 4: Simplify right side
21,261,357.14x = 219,636,697,067,810.84 - Step 5: Solve for x
x = 219,636,697,067,810.84/21,261,357.14 - Step 6: Final answer
x = 10,330,323.49
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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.