Finding the Fourth Proportional to 13,122,022.80, 19,683,034.20 and 13,042,306.65
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Solution
The fourth proportional to 13,122,022.80, 19,683,034.20 and 13,042,306.65 is: 19,563,459.98
Step by Step Solution
- Step 1: Write the proportion equation
13,122,022.80 : 19,683,034.20 = 13,042,306.65 : x - Step 2: Convert to fraction form
13,122,022.80/19,683,034.20 = 13,042,306.65/x - Step 3: Cross multiply
13,122,022.80x = 19,683,034.20 × 13,042,306.65 - Step 4: Simplify right side
13,122,022.80x = 256,712,167,838,837.44 - Step 5: Solve for x
x = 256,712,167,838,837.44/13,122,022.80 - Step 6: Final answer
x = 19,563,459.98
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1.5x scale
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.