Finding the Fourth Proportional to 19,306,502.60, 28,963,641.90 and 5,659,622.60
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Solution
The fourth proportional to 19,306,502.60, 28,963,641.90 and 5,659,622.60 is: 8,490,573.65
Step by Step Solution
- Step 1: Write the proportion equation
19,306,502.60 : 28,963,641.90 = 5,659,622.60 : x - Step 2: Convert to fraction form
19,306,502.60/28,963,641.90 = 5,659,622.60/x - Step 3: Cross multiply
19,306,502.60x = 28,963,641.90 × 5,659,622.60 - Step 4: Simplify right side
19,306,502.60x = 163,923,282,275,546.91 - Step 5: Solve for x
x = 163,923,282,275,546.91/19,306,502.60 - Step 6: Final answer
x = 8,490,573.65
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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.