Finding the Fourth Proportional to 258,169,266.80, 387,368,258.04 and 135,318,387.92
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Solution
The fourth proportional to 258,169,266.80, 387,368,258.04 and 135,318,387.92 is: 203,037,522.08
Step by Step Solution
- Step 1: Write the proportion equation
258,169,266.80 : 387,368,258.04 = 135,318,387.92 : x - Step 2: Convert to fraction form
258,169,266.80/387,368,258.04 = 135,318,387.92/x - Step 3: Cross multiply
258,169,266.80x = 387,368,258.04 × 135,318,387.92 - Step 4: Simplify right side
258,169,266.80x = 52,418,048,209,351,376 - Step 5: Solve for x
x = 52,418,048,209,351,376/258,169,266.80 - Step 6: Final answer
x = 203,037,522.08
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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.