Finding the Fourth Proportional to 12,683,985.28, 19,028,883.84 and 5,496,725.12
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Solution
The fourth proportional to 12,683,985.28, 19,028,883.84 and 5,496,725.12 is: 8,246,346.99
Step by Step Solution
- Step 1: Write the proportion equation
12,683,985.28 : 19,028,883.84 = 5,496,725.12 : x - Step 2: Convert to fraction form
12,683,985.28/19,028,883.84 = 5,496,725.12/x - Step 3: Cross multiply
12,683,985.28x = 19,028,883.84 × 5,496,725.12 - Step 4: Simplify right side
12,683,985.28x = 104,596,543,808,890.06 - Step 5: Solve for x
x = 104,596,543,808,890.06/12,683,985.28 - Step 6: Final answer
x = 8,246,346.99
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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.