Finding the Fourth Proportional to 103,320,515.96, 142,581,090.17 and 56,277,441.70
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Solution
The fourth proportional to 103,320,515.96, 142,581,090.17 and 56,277,441.70 is: 77,662,204.02
Step by Step Solution
- Step 1: Write the proportion equation
103,320,515.96 : 142,581,090.17 = 56,277,441.70 : x - Step 2: Convert to fraction form
103,320,515.96/142,581,090.17 = 56,277,441.70/x - Step 3: Cross multiply
103,320,515.96x = 142,581,090.17 × 56,277,441.70 - Step 4: Simplify right side
103,320,515.96x = 8,024,098,989,348,859 - Step 5: Solve for x
x = 8,024,098,989,348,859/103,320,515.96 - Step 6: Final answer
x = 77,662,204.02
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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.