Finding the Fourth Proportional to 306,442,257.80, 459,663,386.70 and 268,178,505.80
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Solution
The fourth proportional to 306,442,257.80, 459,663,386.70 and 268,178,505.80 is: 402,267,758.70
Step by Step Solution
- Step 1: Write the proportion equation
306,442,257.80 : 459,663,386.70 = 268,178,505.80 : x - Step 2: Convert to fraction form
306,442,257.80/459,663,386.70 = 268,178,505.80/x - Step 3: Cross multiply
306,442,257.80x = 459,663,386.70 × 268,178,505.80 - Step 4: Simplify right side
306,442,257.80x = 123,271,840,216,173,600 - Step 5: Solve for x
x = 123,271,840,216,173,600/306,442,257.80 - Step 6: Final answer
x = 402,267,758.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.