Finding the Fourth Proportional to 733,411,513.80, 1,100,117,270.70 and 442,128,701.70
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Solution
The fourth proportional to 733,411,513.80, 1,100,117,270.70 and 442,128,701.70 is: 663,193,052.55
Step by Step Solution
- Step 1: Write the proportion equation
733,411,513.80 : 1,100,117,270.70 = 442,128,701.70 : x - Step 2: Convert to fraction form
733,411,513.80/1,100,117,270.70 = 442,128,701.70/x - Step 3: Cross multiply
733,411,513.80x = 1,100,117,270.70 × 442,128,701.70 - Step 4: Simplify right side
733,411,513.80x = 486,393,420,612,338,432 - Step 5: Solve for x
x = 486,393,420,612,338,432/733,411,513.80 - Step 6: Final answer
x = 663,193,052.55
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Double scale
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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.