Finding the Fourth Proportional to 1,449,455,774.40, 2,000,271,979.68 and 822,911,417.28
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Solution
The fourth proportional to 1,449,455,774.40, 2,000,271,979.68 and 822,911,417.28 is: 1,135,630,820.07
Step by Step Solution
- Step 1: Write the proportion equation
1,449,455,774.40 : 2,000,271,979.68 = 822,911,417.28 : x - Step 2: Convert to fraction form
1,449,455,774.40/2,000,271,979.68 = 822,911,417.28/x - Step 3: Cross multiply
1,449,455,774.40x = 2,000,271,979.68 × 822,911,417.28 - Step 4: Simplify right side
1,449,455,774.40x = 1,646,046,649,743,940,096 - Step 5: Solve for x
x = 1,646,046,649,743,940,096/1,449,455,774.40 - Step 6: Final answer
x = 1,135,630,820.07
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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.