Finding the Fourth Proportional to 13,302,389.79, 18,366,374.79 and 8,604,173.70
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Solution
The fourth proportional to 13,302,389.79, 18,366,374.79 and 8,604,173.70 is: 11,879,630.76
Step by Step Solution
- Step 1: Write the proportion equation
13,302,389.79 : 18,366,374.79 = 8,604,173.70 : x - Step 2: Convert to fraction form
13,302,389.79/18,366,374.79 = 8,604,173.70/x - Step 3: Cross multiply
13,302,389.79x = 18,366,374.79 × 8,604,173.70 - Step 4: Simplify right side
13,302,389.79x = 158,027,478,932,461 - Step 5: Solve for x
x = 158,027,478,932,461/13,302,389.79 - Step 6: Final answer
x = 11,879,630.76
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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.