Finding the Fourth Proportional to 19,280,548.70, 28,920,698.18 and 4,903,492.26
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Solution
The fourth proportional to 19,280,548.70, 28,920,698.18 and 4,903,492.26 is: 7,355,206.63
Step by Step Solution
- Step 1: Write the proportion equation
19,280,548.70 : 28,920,698.18 = 4,903,492.26 : x - Step 2: Convert to fraction form
19,280,548.70/28,920,698.18 = 4,903,492.26/x - Step 3: Cross multiply
19,280,548.70x = 28,920,698.18 × 4,903,492.26 - Step 4: Simplify right side
19,280,548.70x = 141,812,419,679,426.09 - Step 5: Solve for x
x = 141,812,419,679,426.09/19,280,548.70 - Step 6: Final answer
x = 7,355,206.63
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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.