Finding the Fourth Proportional to 2,565,713,899.58, 3,540,685,181.74 and 1,392,292,171.58
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Solution
The fourth proportional to 2,565,713,899.58, 3,540,685,181.74 and 1,392,292,171.58 is: 1,921,363,196.95
Step by Step Solution
- Step 1: Write the proportion equation
2,565,713,899.58 : 3,540,685,181.74 = 1,392,292,171.58 : x - Step 2: Convert to fraction form
2,565,713,899.58/3,540,685,181.74 = 1,392,292,171.58/x - Step 3: Cross multiply
2,565,713,899.58x = 3,540,685,181.74 × 1,392,292,171.58 - Step 4: Simplify right side
2,565,713,899.58x = 4,929,668,260,544,588,800 - Step 5: Solve for x
x = 4,929,668,260,544,588,800/2,565,713,899.58 - Step 6: Final answer
x = 1,921,363,196.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.