Finding the Fourth Proportional to 83,997,060.30, 125,995,590.45 and 66,990,948.30
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Solution
The fourth proportional to 83,997,060.30, 125,995,590.45 and 66,990,948.30 is: 100,486,422.45
Step by Step Solution
- Step 1: Write the proportion equation
83,997,060.30 : 125,995,590.45 = 66,990,948.30 : x - Step 2: Convert to fraction form
83,997,060.30/125,995,590.45 = 66,990,948.30/x - Step 3: Cross multiply
83,997,060.30x = 125,995,590.45 × 66,990,948.30 - Step 4: Simplify right side
83,997,060.30x = 8,440,564,085,863,924 - Step 5: Solve for x
x = 8,440,564,085,863,924/83,997,060.30 - Step 6: Final answer
x = 100,486,422.45
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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.