Finding the Fourth Proportional to 1,145,032,933.80, 1,717,549,400.70 and 408,934,004.70
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Solution
The fourth proportional to 1,145,032,933.80, 1,717,549,400.70 and 408,934,004.70 is: 613,401,007.05
Step by Step Solution
- Step 1: Write the proportion equation
1,145,032,933.80 : 1,717,549,400.70 = 408,934,004.70 : x - Step 2: Convert to fraction form
1,145,032,933.80/1,717,549,400.70 = 408,934,004.70/x - Step 3: Cross multiply
1,145,032,933.80x = 1,717,549,400.70 × 408,934,004.70 - Step 4: Simplify right side
1,145,032,933.80x = 702,364,354,698,336,000 - Step 5: Solve for x
x = 702,364,354,698,336,000/1,145,032,933.80 - Step 6: Final answer
x = 613,401,007.05
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Double scale
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Similar ratio
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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.