Finding the Fourth Proportional to 81,738,272,843.70, 122,607,409,265.55 and 59,698,351,691.70
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Solution
The fourth proportional to 81,738,272,843.70, 122,607,409,265.55 and 59,698,351,691.70 is: 89,547,527,537.55
Step by Step Solution
- Step 1: Write the proportion equation
81,738,272,843.70 : 122,607,409,265.55 = 59,698,351,691.70 : x - Step 2: Convert to fraction form
81,738,272,843.70/122,607,409,265.55 = 59,698,351,691.70/x - Step 3: Cross multiply
81,738,272,843.70x = 122,607,409,265.55 × 59,698,351,691.70 - Step 4: Simplify right side
81,738,272,843.70x = 7,319,460,238,343,000,817,664 - Step 5: Solve for x
x = 7,319,460,238,343,000,817,664/81,738,272,843.70 - Step 6: Final answer
x = 89,547,527,537.55
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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.