Finding the Fourth Proportional to 56,164,029,489.80, 84,246,044,234.70 and 18,886,631,985.80
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Solution
The fourth proportional to 56,164,029,489.80, 84,246,044,234.70 and 18,886,631,985.80 is: 28,329,947,978.70
Step by Step Solution
- Step 1: Write the proportion equation
56,164,029,489.80 : 84,246,044,234.70 = 18,886,631,985.80 : x - Step 2: Convert to fraction form
56,164,029,489.80/84,246,044,234.70 = 18,886,631,985.80/x - Step 3: Cross multiply
56,164,029,489.80x = 84,246,044,234.70 × 18,886,631,985.80 - Step 4: Simplify right side
56,164,029,489.80x = 1,591,124,033,720,206,491,648 - Step 5: Solve for x
x = 1,591,124,033,720,206,491,648/56,164,029,489.80 - Step 6: Final answer
x = 28,329,947,978.70
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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.