Finding the Fourth Proportional to 20,211,044.18, 30,316,697.55 and 8,081,526.65
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Solution
The fourth proportional to 20,211,044.18, 30,316,697.55 and 8,081,526.65 is: 12,122,342.46
Step by Step Solution
- Step 1: Write the proportion equation
20,211,044.18 : 30,316,697.55 = 8,081,526.65 : x - Step 2: Convert to fraction form
20,211,044.18/30,316,697.55 = 8,081,526.65/x - Step 3: Cross multiply
20,211,044.18x = 30,316,697.55 × 8,081,526.65 - Step 4: Simplify right side
20,211,044.18x = 245,005,199,038,731.22 - Step 5: Solve for x
x = 245,005,199,038,731.22/20,211,044.18 - Step 6: Final answer
x = 12,122,342.46
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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.