Finding the Fourth Proportional to 18,862,698.42, 28,294,043.99 and 8,073,002.70
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Solution
The fourth proportional to 18,862,698.42, 28,294,043.99 and 8,073,002.70 is: 12,109,502.49
Step by Step Solution
- Step 1: Write the proportion equation
18,862,698.42 : 28,294,043.99 = 8,073,002.70 : x - Step 2: Convert to fraction form
18,862,698.42/28,294,043.99 = 8,073,002.70/x - Step 3: Cross multiply
18,862,698.42x = 28,294,043.99 × 8,073,002.70 - Step 4: Simplify right side
18,862,698.42x = 228,417,893,484,823.75 - Step 5: Solve for x
x = 228,417,893,484,823.75/18,862,698.42 - Step 6: Final answer
x = 12,109,502.49
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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.