Finding the Fourth Proportional to 47,260,271.70, 70,890,407.55 and 18,496,847.70
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Solution
The fourth proportional to 47,260,271.70, 70,890,407.55 and 18,496,847.70 is: 27,745,271.55
Step by Step Solution
- Step 1: Write the proportion equation
47,260,271.70 : 70,890,407.55 = 18,496,847.70 : x - Step 2: Convert to fraction form
47,260,271.70/70,890,407.55 = 18,496,847.70/x - Step 3: Cross multiply
47,260,271.70x = 70,890,407.55 × 18,496,847.70 - Step 4: Simplify right side
47,260,271.70x = 1,311,249,071,843,280 - Step 5: Solve for x
x = 1,311,249,071,843,280/47,260,271.70 - Step 6: Final answer
x = 27,745,271.55
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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.