Finding the Fourth Proportional to 20,624,081.04, 28,461,426.70 and 11,331,846.08
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Solution
The fourth proportional to 20,624,081.04, 28,461,426.70 and 11,331,846.08 is: 15,638,054.66
Step by Step Solution
- Step 1: Write the proportion equation
20,624,081.04 : 28,461,426.70 = 11,331,846.08 : x - Step 2: Convert to fraction form
20,624,081.04/28,461,426.70 = 11,331,846.08/x - Step 3: Cross multiply
20,624,081.04x = 28,461,426.70 × 11,331,846.08 - Step 4: Simplify right side
20,624,081.04x = 322,520,506,581,602.31 - Step 5: Solve for x
x = 322,520,506,581,602.31/20,624,081.04 - Step 6: Final answer
x = 15,638,054.66
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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.