Finding the Fourth Proportional to 4,888,987.84, 7,322,854.56 and 2,989,984.96
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Solution
The fourth proportional to 4,888,987.84, 7,322,854.56 and 2,989,984.96 is: 4,478,478.11
Step by Step Solution
- Step 1: Write the proportion equation
4,888,987.84 : 7,322,854.56 = 2,989,984.96 : x - Step 2: Convert to fraction form
4,888,987.84/7,322,854.56 = 2,989,984.96/x - Step 3: Cross multiply
4,888,987.84x = 7,322,854.56 × 2,989,984.96 - Step 4: Simplify right side
4,888,987.84x = 21,895,224,998,667.42 - Step 5: Solve for x
x = 21,895,224,998,667.42/4,888,987.84 - Step 6: Final answer
x = 4,478,478.11
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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.