Finding the Fourth Proportional to 310,901,312.20, 466,351,968.30 and 149,304,281.80
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Solution
The fourth proportional to 310,901,312.20, 466,351,968.30 and 149,304,281.80 is: 223,956,422.70
Step by Step Solution
- Step 1: Write the proportion equation
310,901,312.20 : 466,351,968.30 = 149,304,281.80 : x - Step 2: Convert to fraction form
310,901,312.20/466,351,968.30 = 149,304,281.80/x - Step 3: Cross multiply
310,901,312.20x = 466,351,968.30 × 149,304,281.80 - Step 4: Simplify right side
310,901,312.20x = 69,628,345,693,047,872 - Step 5: Solve for x
x = 69,628,345,693,047,872/310,901,312.20 - Step 6: Final answer
x = 223,956,422.70
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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.