Finding the Fourth Proportional to 664,139,940.20, 996,209,910.30 and 626,516,541.80
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Solution
The fourth proportional to 664,139,940.20, 996,209,910.30 and 626,516,541.80 is: 939,774,812.70
Step by Step Solution
- Step 1: Write the proportion equation
664,139,940.20 : 996,209,910.30 = 626,516,541.80 : x - Step 2: Convert to fraction form
664,139,940.20/996,209,910.30 = 626,516,541.80/x - Step 3: Cross multiply
664,139,940.20x = 996,209,910.30 × 626,516,541.80 - Step 4: Simplify right side
664,139,940.20x = 624,141,987,908,044,160 - Step 5: Solve for x
x = 624,141,987,908,044,160/664,139,940.20 - Step 6: Final answer
x = 939,774,812.70
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Similar ratio
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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.