Finding the Fourth Proportional to 258,258,651.12, 387,388,392.12 and 78,578,952
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Solution
The fourth proportional to 258,258,651.12, 387,388,392.12 and 78,578,952 is: 117,868,554.40
Step by Step Solution
- Step 1: Write the proportion equation
258,258,651.12 : 387,388,392.12 = 78,578,952 : x - Step 2: Convert to fraction form
258,258,651.12/387,388,392.12 = 78,578,952/x - Step 3: Cross multiply
258,258,651.12x = 387,388,392.12 × 78,578,952 - Step 4: Simplify right side
258,258,651.12x = 30,440,573,869,754,660 - Step 5: Solve for x
x = 30,440,573,869,754,660/258,258,651.12 - Step 6: Final answer
x = 117,868,554.40
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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.