Finding the Fourth Proportional to 16,430,639.40, 22,697,475.12 and 14,958,088.56
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Solution
The fourth proportional to 16,430,639.40, 22,697,475.12 and 14,958,088.56 is: 20,663,276.37
Step by Step Solution
- Step 1: Write the proportion equation
16,430,639.40 : 22,697,475.12 = 14,958,088.56 : x - Step 2: Convert to fraction form
16,430,639.40/22,697,475.12 = 14,958,088.56/x - Step 3: Cross multiply
16,430,639.40x = 22,697,475.12 × 14,958,088.56 - Step 4: Simplify right side
16,430,639.40x = 339,510,842,933,356.62 - Step 5: Solve for x
x = 339,510,842,933,356.62/16,430,639.40 - Step 6: Final answer
x = 20,663,276.37
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.