Finding the Fourth Proportional to 28,481,352.98, 39,304,387.50 and 15,428,611.88
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Solution
The fourth proportional to 28,481,352.98, 39,304,387.50 and 15,428,611.88 is: 21,291,549.61
Step by Step Solution
- Step 1: Write the proportion equation
28,481,352.98 : 39,304,387.50 = 15,428,611.88 : x - Step 2: Convert to fraction form
28,481,352.98/39,304,387.50 = 15,428,611.88/x - Step 3: Cross multiply
28,481,352.98x = 39,304,387.50 × 15,428,611.88 - Step 4: Simplify right side
28,481,352.98x = 606,412,139,722,101.50 - Step 5: Solve for x
x = 606,412,139,722,101.50/28,481,352.98 - Step 6: Final answer
x = 21,291,549.61
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.