Finding the Fourth Proportional to 2,115,478,855.80, 3,173,218,283.70 and 2,115,478,855.80
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Solution
The fourth proportional to 2,115,478,855.80, 3,173,218,283.70 and 2,115,478,855.80 is: 3,173,218,283.70
Step by Step Solution
- Step 1: Write the proportion equation
2,115,478,855.80 : 3,173,218,283.70 = 2,115,478,855.80 : x - Step 2: Convert to fraction form
2,115,478,855.80/3,173,218,283.70 = 2,115,478,855.80/x - Step 3: Cross multiply
2,115,478,855.80x = 3,173,218,283.70 × 2,115,478,855.80 - Step 4: Simplify right side
2,115,478,855.80x = 6,712,876,184,005,315,584 - Step 5: Solve for x
x = 6,712,876,184,005,315,584/2,115,478,855.80 - Step 6: Final answer
x = 3,173,218,283.70
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1.5x scale
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.