Finding the Fourth Proportional to 7,828,823.70, 11,739,393.59 and 3,216,974.47
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Solution
The fourth proportional to 7,828,823.70, 11,739,393.59 and 3,216,974.47 is: 4,823,882.98
Step by Step Solution
- Step 1: Write the proportion equation
7,828,823.70 : 11,739,393.59 = 3,216,974.47 : x - Step 2: Convert to fraction form
7,828,823.70/11,739,393.59 = 3,216,974.47/x - Step 3: Cross multiply
7,828,823.70x = 11,739,393.59 × 3,216,974.47 - Step 4: Simplify right side
7,828,823.70x = 37,765,329,426,878.29 - Step 5: Solve for x
x = 37,765,329,426,878.29/7,828,823.70 - Step 6: Final answer
x = 4,823,882.98
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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.