Finding the Fourth Proportional to 5,354,624.80, 8,020,127.40 and 3,220,987.60
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Solution
The fourth proportional to 5,354,624.80, 8,020,127.40 and 3,220,987.60 is: 4,824,377.41
Step by Step Solution
- Step 1: Write the proportion equation
5,354,624.80 : 8,020,127.40 = 3,220,987.60 : x - Step 2: Convert to fraction form
5,354,624.80/8,020,127.40 = 3,220,987.60/x - Step 3: Cross multiply
5,354,624.80x = 8,020,127.40 × 3,220,987.60 - Step 4: Simplify right side
5,354,624.80x = 25,832,730,905,820.24 - Step 5: Solve for x
x = 25,832,730,905,820.24/5,354,624.80 - Step 6: Final answer
x = 4,824,377.41
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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.