Finding the Fourth Proportional to 51,205,145,423.80, 76,807,718,135.70 and 51,205,145,423.80
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Solution
The fourth proportional to 51,205,145,423.80, 76,807,718,135.70 and 51,205,145,423.80 is: 76,807,718,135.70
Step by Step Solution
- Step 1: Write the proportion equation
51,205,145,423.80 : 76,807,718,135.70 = 51,205,145,423.80 : x - Step 2: Convert to fraction form
51,205,145,423.80/76,807,718,135.70 = 51,205,145,423.80/x - Step 3: Cross multiply
51,205,145,423.80x = 76,807,718,135.70 × 51,205,145,423.80 - Step 4: Simplify right side
51,205,145,423.80x = 3,932,950,376,808,759,427,072 - Step 5: Solve for x
x = 3,932,950,376,808,759,427,072/51,205,145,423.80 - Step 6: Final answer
x = 76,807,718,135.70
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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.