Finding the Fourth Proportional to 639,083,116.90, 958,624,675.35 and 329,146,725.70
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Solution
The fourth proportional to 639,083,116.90, 958,624,675.35 and 329,146,725.70 is: 493,720,088.55
Step by Step Solution
- Step 1: Write the proportion equation
639,083,116.90 : 958,624,675.35 = 329,146,725.70 : x - Step 2: Convert to fraction form
639,083,116.90/958,624,675.35 = 329,146,725.70/x - Step 3: Cross multiply
639,083,116.90x = 958,624,675.35 × 329,146,725.70 - Step 4: Simplify right side
639,083,116.90x = 315,528,173,066,678,016 - Step 5: Solve for x
x = 315,528,173,066,678,016/639,083,116.90 - Step 6: Final answer
x = 493,720,088.55
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1.5x scale
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.