Finding the Fourth Proportional to 8,860,976,919.64, 12,231,913,302.30 and 5,521,125,326.32
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Solution
The fourth proportional to 8,860,976,919.64, 12,231,913,302.30 and 5,521,125,326.32 is: 7,621,498,953.80
Step by Step Solution
- Step 1: Write the proportion equation
8,860,976,919.64 : 12,231,913,302.30 = 5,521,125,326.32 : x - Step 2: Convert to fraction form
8,860,976,919.64/12,231,913,302.30 = 5,521,125,326.32/x - Step 3: Cross multiply
8,860,976,919.64x = 12,231,913,302.30 × 5,521,125,326.32 - Step 4: Simplify right side
8,860,976,919.64x = 67,533,926,322,679,029,760 - Step 5: Solve for x
x = 67,533,926,322,679,029,760/8,860,976,919.64 - Step 6: Final answer
x = 7,621,498,953.80
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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.