Finding the Fourth Proportional to 442,667,326.20, 664,000,989.30 and 310,657,381.80
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Solution
The fourth proportional to 442,667,326.20, 664,000,989.30 and 310,657,381.80 is: 465,986,072.70
Step by Step Solution
- Step 1: Write the proportion equation
442,667,326.20 : 664,000,989.30 = 310,657,381.80 : x - Step 2: Convert to fraction form
442,667,326.20/664,000,989.30 = 310,657,381.80/x - Step 3: Cross multiply
442,667,326.20x = 664,000,989.30 × 310,657,381.80 - Step 4: Simplify right side
442,667,326.20x = 206,276,808,848,547,808 - Step 5: Solve for x
x = 206,276,808,848,547,808/442,667,326.20 - Step 6: Final answer
x = 465,986,072.70
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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.