Finding the Fourth Proportional to 103,457,814.79, 142,718,354.40 and 64,284,708.19
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Solution
The fourth proportional to 103,457,814.79, 142,718,354.40 and 64,284,708.19 is: 88,679,697.95
Step by Step Solution
- Step 1: Write the proportion equation
103,457,814.79 : 142,718,354.40 = 64,284,708.19 : x - Step 2: Convert to fraction form
103,457,814.79/142,718,354.40 = 64,284,708.19/x - Step 3: Cross multiply
103,457,814.79x = 142,718,354.40 × 64,284,708.19 - Step 4: Simplify right side
103,457,814.79x = 9,174,607,765,961,002 - Step 5: Solve for x
x = 9,174,607,765,961,002/103,457,814.79 - Step 6: Final answer
x = 88,679,697.95
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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.