Finding the Fourth Proportional to 20,704,635.80, 31,056,953.70 and 7,240,059.80
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Solution
The fourth proportional to 20,704,635.80, 31,056,953.70 and 7,240,059.80 is: 10,860,089.70
Step by Step Solution
- Step 1: Write the proportion equation
20,704,635.80 : 31,056,953.70 = 7,240,059.80 : x - Step 2: Convert to fraction form
20,704,635.80/31,056,953.70 = 7,240,059.80/x - Step 3: Cross multiply
20,704,635.80x = 31,056,953.70 × 7,240,059.80 - Step 4: Simplify right side
20,704,635.80x = 224,854,201,993,831.25 - Step 5: Solve for x
x = 224,854,201,993,831.25/20,704,635.80 - Step 6: Final answer
x = 10,860,089.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.