Finding the Fourth Proportional to 28,311,781.68, 42,275,641.32 and 22,489,156.62
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Solution
The fourth proportional to 28,311,781.68, 42,275,641.32 and 22,489,156.62 is: 33,581,197.03
Step by Step Solution
- Step 1: Write the proportion equation
28,311,781.68 : 42,275,641.32 = 22,489,156.62 : x - Step 2: Convert to fraction form
28,311,781.68/42,275,641.32 = 22,489,156.62/x - Step 3: Cross multiply
28,311,781.68x = 42,275,641.32 × 22,489,156.62 - Step 4: Simplify right side
28,311,781.68x = 950,743,518,856,423.62 - Step 5: Solve for x
x = 950,743,518,856,423.62/28,311,781.68 - Step 6: Final answer
x = 33,581,197.03
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.