Finding the Fourth Proportional to 489,986,677.68, 735,087,636.60 and 144,913,402.80
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Solution
The fourth proportional to 489,986,677.68, 735,087,636.60 and 144,913,402.80 is: 217,401,932.80
Step by Step Solution
- Step 1: Write the proportion equation
489,986,677.68 : 735,087,636.60 = 144,913,402.80 : x - Step 2: Convert to fraction form
489,986,677.68/735,087,636.60 = 144,913,402.80/x - Step 3: Cross multiply
489,986,677.68x = 735,087,636.60 × 144,913,402.80 - Step 4: Simplify right side
489,986,677.68x = 106,524,050,775,915,840 - Step 5: Solve for x
x = 106,524,050,775,915,840/489,986,677.68 - Step 6: Final answer
x = 217,401,932.80
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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.