Finding the Fourth Proportional to 20,670,087.99, 30,984,289.41 and 12,999,214.99
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Solution
The fourth proportional to 20,670,087.99, 30,984,289.41 and 12,999,214.99 is: 19,485,714.79
Step by Step Solution
- Step 1: Write the proportion equation
20,670,087.99 : 30,984,289.41 = 12,999,214.99 : x - Step 2: Convert to fraction form
20,670,087.99/30,984,289.41 = 12,999,214.99/x - Step 3: Cross multiply
20,670,087.99x = 30,984,289.41 × 12,999,214.99 - Step 4: Simplify right side
20,670,087.99x = 402,771,439,352,970.25 - Step 5: Solve for x
x = 402,771,439,352,970.25/20,670,087.99 - Step 6: Final answer
x = 19,485,714.79
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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.