Finding the Fourth Proportional to 18,594,089.20, 27,891,133.80 and 12,854,526.40
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Solution
The fourth proportional to 18,594,089.20, 27,891,133.80 and 12,854,526.40 is: 19,281,789.60
Step by Step Solution
- Step 1: Write the proportion equation
18,594,089.20 : 27,891,133.80 = 12,854,526.40 : x - Step 2: Convert to fraction form
18,594,089.20/27,891,133.80 = 12,854,526.40/x - Step 3: Cross multiply
18,594,089.20x = 27,891,133.80 × 12,854,526.40 - Step 4: Simplify right side
18,594,089.20x = 358,527,315,758,032.31 - Step 5: Solve for x
x = 358,527,315,758,032.31/18,594,089.20 - Step 6: Final answer
x = 19,281,789.60
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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.