Finding the Fourth Proportional to 19,740,312.65, 27,230,685.35 and 11,479,466.90
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Solution
The fourth proportional to 19,740,312.65, 27,230,685.35 and 11,479,466.90 is: 15,835,298.89
Step by Step Solution
- Step 1: Write the proportion equation
19,740,312.65 : 27,230,685.35 = 11,479,466.90 : x - Step 2: Convert to fraction form
19,740,312.65/27,230,685.35 = 11,479,466.90/x - Step 3: Cross multiply
19,740,312.65x = 27,230,685.35 × 11,479,466.90 - Step 4: Simplify right side
19,740,312.65x = 312,593,750,946,089.12 - Step 5: Solve for x
x = 312,593,750,946,089.12/19,740,312.65 - Step 6: Final answer
x = 15,835,298.89
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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.