Finding the Fourth Proportional to 19,907,328,981.70, 29,860,993,472.55 and 6,816,775,125.70
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Solution
The fourth proportional to 19,907,328,981.70, 29,860,993,472.55 and 6,816,775,125.70 is: 10,225,162,688.55
Step by Step Solution
- Step 1: Write the proportion equation
19,907,328,981.70 : 29,860,993,472.55 = 6,816,775,125.70 : x - Step 2: Convert to fraction form
19,907,328,981.70/29,860,993,472.55 = 6,816,775,125.70/x - Step 3: Cross multiply
19,907,328,981.70x = 29,860,993,472.55 × 6,816,775,125.70 - Step 4: Simplify right side
19,907,328,981.70x = 203,555,677,532,368,896,000 - Step 5: Solve for x
x = 203,555,677,532,368,896,000/19,907,328,981.70 - Step 6: Final answer
x = 10,225,162,688.55
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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.