Finding the Fourth Proportional to 4,921,334,609.59, 7,382,021,066.30 and 1,190,620,014.99
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Solution
The fourth proportional to 4,921,334,609.59, 7,382,021,066.30 and 1,190,620,014.99 is: 1,785,934,655.91
Step by Step Solution
- Step 1: Write the proportion equation
4,921,334,609.59 : 7,382,021,066.30 = 1,190,620,014.99 : x - Step 2: Convert to fraction form
4,921,334,609.59/7,382,021,066.30 = 1,190,620,014.99/x - Step 3: Cross multiply
4,921,334,609.59x = 7,382,021,066.30 × 1,190,620,014.99 - Step 4: Simplify right side
4,921,334,609.59x = 8,789,182,032,614,601,728 - Step 5: Solve for x
x = 8,789,182,032,614,601,728/4,921,334,609.59 - Step 6: Final answer
x = 1,785,934,655.91
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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.