Finding the Fourth Proportional to 19,125,679.09, 28,688,830.04 and 5,478,772.44
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Solution
The fourth proportional to 19,125,679.09, 28,688,830.04 and 5,478,772.44 is: 8,218,247.87
Step by Step Solution
- Step 1: Write the proportion equation
19,125,679.09 : 28,688,830.04 = 5,478,772.44 : x - Step 2: Convert to fraction form
19,125,679.09/28,688,830.04 = 5,478,772.44/x - Step 3: Cross multiply
19,125,679.09x = 28,688,830.04 × 5,478,772.44 - Step 4: Simplify right side
19,125,679.09x = 157,179,571,358,996.09 - Step 5: Solve for x
x = 157,179,571,358,996.09/19,125,679.09 - Step 6: Final answer
x = 8,218,247.87
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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.