Finding the Fourth Proportional to 258,423,396.93, 387,589,069.98 and 102,964,176.09
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Solution
The fourth proportional to 258,423,396.93, 387,589,069.98 and 102,964,176.09 is: 154,427,926.13
Step by Step Solution
- Step 1: Write the proportion equation
258,423,396.93 : 387,589,069.98 = 102,964,176.09 : x - Step 2: Convert to fraction form
258,423,396.93/387,589,069.98 = 102,964,176.09/x - Step 3: Cross multiply
258,423,396.93x = 387,589,069.98 × 102,964,176.09 - Step 4: Simplify right side
258,423,396.93x = 39,907,789,251,980,056 - Step 5: Solve for x
x = 39,907,789,251,980,056/258,423,396.93 - Step 6: Final answer
x = 154,427,926.13
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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.