Finding the Fourth Proportional to 12,742,178.28, 17,583,638.52 and 7,444,364.08
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Solution
The fourth proportional to 12,742,178.28, 17,583,638.52 and 7,444,364.08 is: 10,272,890.88
Step by Step Solution
- Step 1: Write the proportion equation
12,742,178.28 : 17,583,638.52 = 7,444,364.08 : x - Step 2: Convert to fraction form
12,742,178.28/17,583,638.52 = 7,444,364.08/x - Step 3: Cross multiply
12,742,178.28x = 17,583,638.52 × 7,444,364.08 - Step 4: Simplify right side
12,742,178.28x = 130,899,006,993,992.36 - Step 5: Solve for x
x = 130,899,006,993,992.36/12,742,178.28 - Step 6: Final answer
x = 10,272,890.88
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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.