Finding the Fourth Proportional to 5,415,219.79, 8,122,767.03 and 1,316,564.15
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Solution
The fourth proportional to 5,415,219.79, 8,122,767.03 and 1,316,564.15 is: 1,974,830.99
Step by Step Solution
- Step 1: Write the proportion equation
5,415,219.79 : 8,122,767.03 = 1,316,564.15 : x - Step 2: Convert to fraction form
5,415,219.79/8,122,767.03 = 1,316,564.15/x - Step 3: Cross multiply
5,415,219.79x = 8,122,767.03 × 1,316,564.15 - Step 4: Simplify right side
5,415,219.79x = 10,694,143,870,499.97 - Step 5: Solve for x
x = 10,694,143,870,499.97/5,415,219.79 - Step 6: Final answer
x = 1,974,830.99
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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.