Finding the Fourth Proportional to 6,438,574,856.70, 9,657,862,285.05 and 5,405,453,552.70
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Solution
The fourth proportional to 6,438,574,856.70, 9,657,862,285.05 and 5,405,453,552.70 is: 8,108,180,329.05
Step by Step Solution
- Step 1: Write the proportion equation
6,438,574,856.70 : 9,657,862,285.05 = 5,405,453,552.70 : x - Step 2: Convert to fraction form
6,438,574,856.70/9,657,862,285.05 = 5,405,453,552.70/x - Step 3: Cross multiply
6,438,574,856.70x = 9,657,862,285.05 × 5,405,453,552.70 - Step 4: Simplify right side
6,438,574,856.70x = 52,205,126,000,210,853,888 - Step 5: Solve for x
x = 52,205,126,000,210,853,888/6,438,574,856.70 - Step 6: Final answer
x = 8,108,180,329.05
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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.