Finding the Fourth Proportional to 19,511,743.80, 29,261,415.36 and 18,238,056.84
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Solution
The fourth proportional to 19,511,743.80, 29,261,415.36 and 18,238,056.84 is: 27,351,289.67
Step by Step Solution
- Step 1: Write the proportion equation
19,511,743.80 : 29,261,415.36 = 18,238,056.84 : x - Step 2: Convert to fraction form
19,511,743.80/29,261,415.36 = 18,238,056.84/x - Step 3: Cross multiply
19,511,743.80x = 29,261,415.36 × 18,238,056.84 - Step 4: Simplify right side
19,511,743.80x = 533,671,356,554,529.06 - Step 5: Solve for x
x = 533,671,356,554,529.06/19,511,743.80 - Step 6: Final answer
x = 27,351,289.67
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.