Finding the Fourth Proportional to 5,429,942,415.70, 8,144,913,623.55 and 2,158,391,619.70
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Solution
The fourth proportional to 5,429,942,415.70, 8,144,913,623.55 and 2,158,391,619.70 is: 3,237,587,429.55
Step by Step Solution
- Step 1: Write the proportion equation
5,429,942,415.70 : 8,144,913,623.55 = 2,158,391,619.70 : x - Step 2: Convert to fraction form
5,429,942,415.70/8,144,913,623.55 = 2,158,391,619.70/x - Step 3: Cross multiply
5,429,942,415.70x = 8,144,913,623.55 × 2,158,391,619.70 - Step 4: Simplify right side
5,429,942,415.70x = 17,579,913,308,250,679,296 - Step 5: Solve for x
x = 17,579,913,308,250,679,296/5,429,942,415.70 - Step 6: Final answer
x = 3,237,587,429.55
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Double scale
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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.