Finding the Fourth Proportional to 996,909,737.20, 1,495,364,605.80 and 670,392,386.80
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Solution
The fourth proportional to 996,909,737.20, 1,495,364,605.80 and 670,392,386.80 is: 1,005,588,580.20
Step by Step Solution
- Step 1: Write the proportion equation
996,909,737.20 : 1,495,364,605.80 = 670,392,386.80 : x - Step 2: Convert to fraction form
996,909,737.20/1,495,364,605.80 = 670,392,386.80/x - Step 3: Cross multiply
996,909,737.20x = 1,495,364,605.80 × 670,392,386.80 - Step 4: Simplify right side
996,909,737.20x = 1,002,481,047,218,503,040 - Step 5: Solve for x
x = 1,002,481,047,218,503,040/996,909,737.20 - Step 6: Final answer
x = 1,005,588,580.20
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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.