Finding the Fourth Proportional to 19,796,565.80, 29,694,848.70 and 8,435,538.20
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Solution
The fourth proportional to 19,796,565.80, 29,694,848.70 and 8,435,538.20 is: 12,653,307.30
Step by Step Solution
- Step 1: Write the proportion equation
19,796,565.80 : 29,694,848.70 = 8,435,538.20 : x - Step 2: Convert to fraction form
19,796,565.80/29,694,848.70 = 8,435,538.20/x - Step 3: Cross multiply
19,796,565.80x = 29,694,848.70 × 8,435,538.20 - Step 4: Simplify right side
19,796,565.80x = 250,492,030,552,070.31 - Step 5: Solve for x
x = 250,492,030,552,070.31/19,796,565.80 - Step 6: Final answer
x = 12,653,307.30
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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.