Finding the Fourth Proportional to 7,021,423.41, 9,688,884.44 and 4,407,091.81
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Solution
The fourth proportional to 7,021,423.41, 9,688,884.44 and 4,407,091.81 is: 6,081,359.97
Step by Step Solution
- Step 1: Write the proportion equation
7,021,423.41 : 9,688,884.44 = 4,407,091.81 : x - Step 2: Convert to fraction form
7,021,423.41/9,688,884.44 = 4,407,091.81/x - Step 3: Cross multiply
7,021,423.41x = 9,688,884.44 × 4,407,091.81 - Step 4: Simplify right side
7,021,423.41x = 42,699,803,244,552.76 - Step 5: Solve for x
x = 42,699,803,244,552.76/7,021,423.41 - Step 6: Final answer
x = 6,081,359.97
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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.