Finding the Fourth Proportional to 393,984,117.80, 590,976,176.70 and 106,769,781.80
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Solution
The fourth proportional to 393,984,117.80, 590,976,176.70 and 106,769,781.80 is: 160,154,672.70
Step by Step Solution
- Step 1: Write the proportion equation
393,984,117.80 : 590,976,176.70 = 106,769,781.80 : x - Step 2: Convert to fraction form
393,984,117.80/590,976,176.70 = 106,769,781.80/x - Step 3: Cross multiply
393,984,117.80x = 590,976,176.70 × 106,769,781.80 - Step 4: Simplify right side
393,984,117.80x = 63,098,397,435,257,248 - Step 5: Solve for x
x = 63,098,397,435,257,248/393,984,117.80 - Step 6: Final answer
x = 160,154,672.70
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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.