Finding the Fourth Proportional to 16,215,811.70, 22,377,821.91 and 8,873,646.40
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Solution
The fourth proportional to 16,215,811.70, 22,377,821.91 and 8,873,646.40 is: 12,245,632.99
Step by Step Solution
- Step 1: Write the proportion equation
16,215,811.70 : 22,377,821.91 = 8,873,646.40 : x - Step 2: Convert to fraction form
16,215,811.70/22,377,821.91 = 8,873,646.40/x - Step 3: Cross multiply
16,215,811.70x = 22,377,821.91 × 8,873,646.40 - Step 4: Simplify right side
16,215,811.70x = 198,572,878,772,228.62 - Step 5: Solve for x
x = 198,572,878,772,228.62/16,215,811.70 - Step 6: Final answer
x = 12,245,632.99
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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.