Finding the Fourth Proportional to 7,339,960.20, 11,009,940.30 and 5,828,305.80
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Solution
The fourth proportional to 7,339,960.20, 11,009,940.30 and 5,828,305.80 is: 8,742,458.70
Step by Step Solution
- Step 1: Write the proportion equation
7,339,960.20 : 11,009,940.30 = 5,828,305.80 : x - Step 2: Convert to fraction form
7,339,960.20/11,009,940.30 = 5,828,305.80/x - Step 3: Cross multiply
7,339,960.20x = 11,009,940.30 × 5,828,305.80 - Step 4: Simplify right side
7,339,960.20x = 64,169,298,908,143.74 - Step 5: Solve for x
x = 64,169,298,908,143.74/7,339,960.20 - Step 6: Final answer
x = 8,742,458.70
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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.