Finding the Fourth Proportional to 12,298,415.70, 18,447,623.55 and 4,320,239.70
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Solution
The fourth proportional to 12,298,415.70, 18,447,623.55 and 4,320,239.70 is: 6,480,359.55
Step by Step Solution
- Step 1: Write the proportion equation
12,298,415.70 : 18,447,623.55 = 4,320,239.70 : x - Step 2: Convert to fraction form
12,298,415.70/18,447,623.55 = 4,320,239.70/x - Step 3: Cross multiply
12,298,415.70x = 18,447,623.55 × 4,320,239.70 - Step 4: Simplify right side
12,298,415.70x = 79,698,155,631,364.94 - Step 5: Solve for x
x = 79,698,155,631,364.94/12,298,415.70 - Step 6: Final answer
x = 6,480,359.55
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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.