Finding the Fourth Proportional to 81,775,861.40, 122,663,792.10 and 58,817,610.20
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Solution
The fourth proportional to 81,775,861.40, 122,663,792.10 and 58,817,610.20 is: 88,226,415.30
Step by Step Solution
- Step 1: Write the proportion equation
81,775,861.40 : 122,663,792.10 = 58,817,610.20 : x - Step 2: Convert to fraction form
81,775,861.40/122,663,792.10 = 58,817,610.20/x - Step 3: Cross multiply
81,775,861.40x = 122,663,792.10 × 58,817,610.20 - Step 4: Simplify right side
81,775,861.40x = 7,214,791,109,391,639 - Step 5: Solve for x
x = 7,214,791,109,391,639/81,775,861.40 - Step 6: Final answer
x = 88,226,415.30
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1.5x scale
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.