Finding the Fourth Proportional to 81,679,459.46, 122,445,033.14 and 40,751,416.58
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Solution
The fourth proportional to 81,679,459.46, 122,445,033.14 and 40,751,416.58 is: 61,090,127.02
Step by Step Solution
- Step 1: Write the proportion equation
81,679,459.46 : 122,445,033.14 = 40,751,416.58 : x - Step 2: Convert to fraction form
81,679,459.46/122,445,033.14 = 40,751,416.58/x - Step 3: Cross multiply
81,679,459.46x = 122,445,033.14 × 40,751,416.58 - Step 4: Simplify right side
81,679,459.46x = 4,989,808,553,640,045 - Step 5: Solve for x
x = 4,989,808,553,640,045/81,679,459.46 - Step 6: Final answer
x = 61,090,127.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.