Finding the Fourth Proportional to 81,738,272,856.70, 122,607,409,285.05 and 59,698,351,704.70
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Solution
The fourth proportional to 81,738,272,856.70, 122,607,409,285.05 and 59,698,351,704.70 is: 89,547,527,557.05
Step by Step Solution
- Step 1: Write the proportion equation
81,738,272,856.70 : 122,607,409,285.05 = 59,698,351,704.70 : x - Step 2: Convert to fraction form
81,738,272,856.70/122,607,409,285.05 = 59,698,351,704.70/x - Step 3: Cross multiply
81,738,272,856.70x = 122,607,409,285.05 × 59,698,351,704.70 - Step 4: Simplify right side
81,738,272,856.70x = 7,319,460,241,101,014,695,936 - Step 5: Solve for x
x = 7,319,460,241,101,014,695,936/81,738,272,856.70 - Step 6: Final answer
x = 89,547,527,557.05
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Double scale
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Similar ratio
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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.