Finding the Fourth Proportional to 7,280,627.60, 10,927,939.80 and 3,690,448.40
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Solution
The fourth proportional to 7,280,627.60, 10,927,939.80 and 3,690,448.40 is: 5,539,219.99
Step by Step Solution
- Step 1: Write the proportion equation
7,280,627.60 : 10,927,939.80 = 3,690,448.40 : x - Step 2: Convert to fraction form
7,280,627.60/10,927,939.80 = 3,690,448.40/x - Step 3: Cross multiply
7,280,627.60x = 10,927,939.80 × 3,690,448.40 - Step 4: Simplify right side
7,280,627.60x = 40,328,997,950,206.32 - Step 5: Solve for x
x = 40,328,997,950,206.32/7,280,627.60 - Step 6: Final answer
x = 5,539,219.99
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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.