Finding the Fourth Proportional to 837,968,604.91, 1,156,432,515.92 and 466,690,576.75
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Solution
The fourth proportional to 837,968,604.91, 1,156,432,515.92 and 466,690,576.75 is: 644,052,956.95
Step by Step Solution
- Step 1: Write the proportion equation
837,968,604.91 : 1,156,432,515.92 = 466,690,576.75 : x - Step 2: Convert to fraction form
837,968,604.91/1,156,432,515.92 = 466,690,576.75/x - Step 3: Cross multiply
837,968,604.91x = 1,156,432,515.92 × 466,690,576.75 - Step 4: Simplify right side
837,968,604.91x = 539,696,157,827,158,400 - Step 5: Solve for x
x = 539,696,157,827,158,400/837,968,604.91 - Step 6: Final answer
x = 644,052,956.95
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.